TW200809274A - Glare-proof polarizing film laminate and liquid crystal display comprising the same - Google Patents

Abstract

A glare-proof polarizing film laminate having a glare-proof layer with irregularities on its surface, a linear polarizer and an optically anisotropic layer, in which the glare-proof layer has a haze of 5% or less against vertical incident light, a total reflection definition of 50% or less when the reflection definitions are measured at an incident angle of light of 45 degrees using three optical frequency combs consisting of dark lines and bright lines each having a width of 0.5 mm, 1.0 mm and 2.0 mm, a reflectance R(30) of 2% or less, a reflectance R(40) of 0.003% or less, and a ratio of R(≥60) to R(30) of 0.001 or less, each reflectance being measured against incident light entering at an incident angle of 30 degrees; the surface of the glare-proof layer consisting of Voronoi polygons with an average area of 50 to 1,500 μm2; and the optically anisotropic layer has an optically negative or positive uniaxiality and an optical axis slanting by an angle of 5 to 50 degrees from the normal direction of the layer.

Description

200809274 (1) Description of the Invention [Technical Field] The present invention relates to an anti-glare layer body suitable for a liquid crystal display or the like and a liquid crystal display including the same. ". [Prior Art].  Liquid crystal displays are increasingly used in portable TVs and note sizes Φ brains, etc. because of their good features, such as light weight, thick consumption, and the like. Recently, such liquid crystal displays have also been gradually used for devices such as TVs having large screens and the like. In the case of a liquid crystal display such as a television display screen, the focus is on the contrast when viewing the screen from the front and the viewing angle when viewing the screen obliquely. The refractive index enthalpy caused by the pretilt of the liquid crystal material in the conventional twisted nematic type (hereinafter referred to as "TN") liquid ^ unit has sufficient viewing angle properties. Then, between the liquid crystal cell of the JP-A-〇6_2l4l 16 liquid crystal display and the polarizing plate, a light optical anisotropic layer which is axial and aligned in a skew direction associated with the surface of the sheet is provided. JP-A-100- 863 5 6 discloses an optical compensation film having a fixed nematic type formed of a liquid crystal polymer having a liquid crystal state, and describes an enlarged viewing angle by compensating a film on a TN type liquid crystal display. That is, the TN type liquid crystal viewing angle is improved by using an optically anisotropic layer having an optical axis aligned with the skew direction of the film as the optical compensation film. The personal electric power of the polarizing film, the low-energy image monitor, etc. are used for the degree, the special contrast, the crystal is not smashed due to an anisotropy, and the surface of the light display is applied on the positive uniaxial mixed orientation of the light having a negative optical axis. Related -5 - 200809274 (2) Image display devices such as liquid crystal displays will obviously lose their visibility when their image display screens reflect external light. Thus, in applications such as TVs, monitor screens for personal computers, etc. that impart image quality and visibility importance, the screen surface of the display device is typically processed to prevent reflection of extraneous light. Regarding means for preventing reflection, it is preferable to use an anti-glare treatment in applications such as large personal electric brains, monitors, TVs, and the like.  Fine irregularities will be formed on the surface to scatter incident light and thereby blur the inverse Φ image because this process is performed at a moderate cost. Regarding the film which provides this anti-glare property, JP-A-2002-3654 10 discloses an optical film having fine irregularities formed thereon, wherein the reflected light profile satisfies the direction when the light follows the normal angle of 1 degree. It enters the surface of the film and only observes the specific relationship of the reflected light from the surface. JP-A-2002-1 891 06 discloses an anti-glare film comprising a transparent resin film and a fine irregular ion-radiation curable resin layer by curing the ion-radiation curable resin layer while curing the ionizing radiation The resin layer is interposed between the embossing die and the transparent resin # film to form such small irregularities, so that the average roughness of the three-dimensional 10 o'clock point and the average distance between adjacent convex portions of the three-dimensional surface roughness datum are respectively specified It is formed on the surface of the transparent resin film in the range. JP-A-2004-901 87 discloses a method of manufacturing a roll for the manufacture of a film having a fine irregularity on its surface, the method comprising forming a plated metal layer on the surface of the embossing roll, mirror honing the The surface of the metal layer is plated, and the mirrored surface of the plated metal layer is sprayed with ceramic beads, and the step of plating the metal layer is optionally performed. In general, it may be necessary to use an anti-glare 200809274 (3) film having a high turbidity of at least 10% to protect the reflection of extraneous light and ensure sufficient visibility, and an anti-glare film having such high turbidity is widely used. Notebook-sized PCs, TVs, and more. However, an anti-glare film having at least 10% high haze has the disadvantage that the contrast measured in a bright room is lowered due to its broad reflection-scattering property. Furthermore, the high turbidity anti-glare film also reduces the contrast measured in the darkroom, which is a disadvantage of the liquid crystal display. .  In order to solve those problems, JP-A-2006-533 7 1 discloses an anti-glare film having a low haze φ degree and a specific reflection profile, which utilizes the impact of fine particles to form irregularities on the honed metal plate, in which Electroless nickel plating on the irregular surface of the metal plate is performed by reducing the irregular depth to form a mold, and irregularly transferring the surface of the mold to the surface of the transparent resin film. JP-A-2006-535 1 1 discloses an anti-glare polarizing film comprising an anti-glare layer, a linear polarizing film and an optically anisotropic layer, which are laminated in this order, wherein the anti-glare layer is divided into fields each having a specified area And it is explained that when the anti-glare polarizing film is applied to a TN type to a liquid crystal display, the visibility of the liquid crystal display will be improved. SUMMARY OF THE INVENTION An object of the present invention is to provide an anti-glare polarizing film which has high anti-glare properties and improved visibility without increasing turbidity. Another object of the present invention is to provide a liquid crystal display comprising the antiglare polarizing film according to the present invention and having sufficient antiglare properties as well as good display characteristics. The present invention is based on the anti-glare polarizing film laminate of JP_A-2006_53511, which comprises an anti-glare layer, a linear polarizing film and an optically polarized layer of 200809274 (4) laminated in the following order, which will have JP-A-2006 An anti-glare film having an improved reflection profile disclosed in -5 3 3 7 1 is applied to the anti-glare polarizing film laminate. Next, different studies were conducted to further improve the anti-glare property of the anti-glare polarizing film laminate. As a result, it has been found that when the antiglare polarizing film laminate has an antiglare layer having a specific surface shape and a specific optical property provided on one surface of the linear polarizing film and the other surface of the linear polarizing film is provided, The law of this layer.  When the anisotropic layer of the optical axis is inclined in the line direction, the anti-glare polarizing film laminate φ body will have low haze, and when the anti-glare polarizing film laminate is applied to the liquid crystal display, the contrast of the display can be further improved. . Then, the present invention has been completed after further research. Accordingly, the present invention provides an anti-glare polarizing film laminate comprising an anti-glare layer having a fine irregularity on a surface, a linear polarizing film, and an optically anisotropic layer, which are laminated in this order, wherein the anti-glare layer Has a turbidity of 5% or less for normal incident light, and has 0 when used. 5 mm, 1. 0 mm and 2. The three optical frequency combs consisting of a dark line of 0 mm width and a bright line of φ light have a total reflection resolution of 50% or less at a reflection angle of 45 degrees, and incident light entering a 30 degree angle of incidence. The reflectance R (3〇) at a reflection angle of 30% of 2% or less, and the incident light entering the incident angle of 40 degrees has 0. The reflectance R(40) at a reflection angle of 40 degrees or less of 003% or less, and 0. Ratio of R ( 2 60 ) to R ( 30 ) of 001 or less, where R ( > 60 ) is the reflectance of incident light entering the incident angle of 30 degrees at any angle of 60 degrees or more; The surface of the anti-glare layer is composed of a polygon having an average area of 50 μm 2 to 1,500 μπ 2 , preferably -8-200809274 (5) 3 00 μιη 2 to 1, 〇〇〇μπι 2 , wherein the polygons are An optically anisotropic layer having an optically negative or optical positive uniaxiality and having an angle of 5 to 50 degrees from the normal direction of the layer; axis. In the anti-glare polarizing film laminate of the present invention, the anti-glare layer is advantageously composed of .  The surface is composed of a fine irregular resin film, and the preparation of the resin film is irregularly formed on the honed metal plate by the impact of the fine particles, and the electroless nickel is applied on the irregular surface of the metal plate. To form a mold, the surface of the mold is irregularly transferred to the surface of the transparent resin film, and the resin film is removed from the mold. Here, the transparent resin film may be a film of a UV curable resin or a thermoplastic resin. Furthermore, the present invention provides a liquid crystal display comprising a liquid crystal cell comprising a pair of electrode substrates and a ΤΝ-type liquid crystal sandwiched between the electrode substrates, and disposed on both surfaces of the liquid crystal cell A polarizing plate, wherein the polarizing plate placed on the surface side of the display is composed of the anti-glare polarizing film laminate of the present invention, and the anti-glare polarizing film laminate is placed such that the optically anisotropic layer faces the liquid crystal cell. Although the surface of the antiglare polarizing film laminate has fine irregularities to achieve antiglare properties, the antiglare polarizing film laminate of the present invention has low haze. When the antiglare polarizing film laminate is applied to a liquid crystal display, in particular, when the liquid crystal display for displaying an image by controlling the alignment state of the liquid crystal is used, the antiglare polarizing film laminate of the present invention can achieve high contrast. Furthermore, the liquid crystal display according to the present invention has high anti-glare properties and can also achieve high contrast -9-200809274 (6) degrees, so it is superior to the brightness and visibility of the displayed image. [Embodiment] The present invention will be described with reference to the accompanying drawings. Referring to Fig. 1, the anti-glare polarizing film laminate 10 of the present invention comprises an anti-glare layer 1 1 , a linear polarizing film 30 and an optically anisotropic layer 40, which are dependent on each other.  This sequence is layered at the top. The anti-glare layer 11 has an anti-glare surface on which fine irregularities are formed, and turbidity is 5% or less for normal incident light, and each has 0. 5 mm, 1. 0 mm and 2. The three optical frequency combs consisting of dark and bright lines of 0 mm width have a total reflection resolution of 50% or less when measuring the reflection resolution at a 45-degree light incident angle, and have two incident light rays entering the incident angle of 30 degrees. The reflectance R ( 30 ) at a reflection angle of 30 degrees or less of 30 degrees or less has an incident light entering the incident angle of 40 degrees. The reflectance R(40) at a reflection angle of 40 degrees 003% or less, and 0. 001 or less " R ( 2 60 ) vs. R ( 30 ), where R ( 2 60 ) is the reflection of any direction of incident light entering the angle of 30 degrees • incident angle of 60 degrees or more And the surface of the anti-glare layer is composed of a polygon having an average area of 50 μm 2 to 1,500 μm 2 , preferably 300 μm 2 to 1,000 μm 2 , wherein the polygons are irregular by surface as a mother point The vortex segmentation of the apex of the convex portion is formed. The optically anisotropic layer 40 has an optical axis of negative or optical positive uniaxiality and an angle of 5 to 50 degrees from the normal direction of the layer. Now, the anti-glare layer 11 will be described. The anti-glare layer 11 is preferably manufactured by the method described below, and has an anti-glare surface on which fine irregularities are formed, and 5% or less of the normal incident light. Turbidity. Although the anti-glare layer 11 has fine irregularities on the surface thereof, when it is applied to a liquid crystal display, it will have low haze and thus it can suppress a decrease in contrast. The anti-glare layer 11 has a total-reflection resolution of 50% or less for 45-degree incident light. The reflection sharpness can be determined by the method described in JIS K 7105.  To measure. In the method of JIS K 7105, it is defined and used by each having H. 125 mm, 0·5 mm, 1·0 mm and 2. Four optical combs consisting of a dark line of 0 mm width and a bright line (the ratio of the width of the dark line to the width of the bright line is 1:1). In the present invention, in the reflection sharpness measured using four kinds of optical frequency combs, it is not used to have 0. The gain of the 125 mm wide optical frequency comb is added to the sum because the reflection resolution obtained by the optical comb is too small to use the anti-glare film according to the present invention, so that the measurement flaw has a large error. Thus, in the present invention, the total reflection resolution is used by each having Qin 0. 5 mm, 1. 0 mm and 2. A combination of dark and bright lines of 0 mm width • The sum of the reflection resolutions measured by the three optical frequency combs. Thus, the maximum possible 値 according to the above definition of total reflection resolution is 300%. When the total reflection sharpness exceeds 50%, an image such as a light source image or the like is reflected so that the anti-glare property of the anti-glare polarizing film laminate of the present invention is deteriorated. When the total reflection resolution is 50% or less, it may be difficult to evaluate the superiority of the anti-glare property only from the total reflection resolution, because if the total reflection resolution is 50% or less, the use has 0. 5 mm, 1. 0 mm and 2. The reflection resolution of the three optical frequency combs of 0 mm width is at most about 10 to 20%, so the reflection caused by the measurement error cannot be ignored. -11 - 200809274 (8) Fluctuation fluctuation. Next, the dependence of the reflectance on the reflection angle is described with reference to Figures 2 and 3, which is taken as another criterion for evaluating the anti-glare property. Fig. 2 is a perspective view showing a light incident direction and a reflection direction associated with an antiglare layer (anti-glare film). According to the present invention, when R ( 30 ) is defined as incident light 16 entering at a 30 degree angle from the normal line 15 of the anti-glare layer 1 1 , in the direction of the reflection angle of 30 degrees, That is to say, the reflection φ rate of the reflected light in the reflection direction 17 is R (3 〇) of 2% or less. The reflectance R ( 30 ) is preferably 1. 5% or less, more preferably 7% or less. When the reflectance R (30) exceeds 2%, the antiglare layer may not have sufficient antiglare properties such that the visibility of the display is lowered. In Fig. 2, the direction of the reflected light at any corner 以 is represented by the number 18, and the directions 17 and 18 of the reflected light are present in the direction 16 including the incident light and the The normal of the film is in the plane of 1 5 . " Fig. 3 is a graph showing the reflectance of the reflected light 18 associated with the incident light 16 entering from the normal line of the anti-glare layer 1 1 of Fig. 2, the angle of the reflection angle . The graph showing the relationship between the reflectance and the reflection angle, or the reflectance read from the pattern of the respective reflection angles is called the "reflection profile". As shown in Fig. 3, the reflectance R (30) is a reflectance peak associated with incident light 16 entering at an angle of 30 degrees, and the reflectance tends to decrease as the direction of reflection deviates from the direction of reflection. According to the present invention, when R ( 40 ) is defined as incident light entering at a 30 degree angle from the normal line 15 of the anti-glare layer 1 1 shown in Fig. 2, reflection in the direction of the 40-degree reflection angle When the light reflectance is R ( 40 ) is 0. 003% or -12- 200809274 (9) Smaller. When R ( 40 ) exceeds 0. When 0 03%, the display image is tilted, and R (40) is preferably not so large. When R ( 4 〇 ) is too small, the anti-glare layer may not have sufficient anti-glare properties. Thus, R ( 40 ) is at least 0. 00 005%. However, it is difficult to closely measure the R ( 40 ) position because reflection or whitening is subjectively determined by the eye and reflecting the user's bias. Further, according to the invention, R ( 2 60 ) is φ 0 for R ( 30 ). 001 or less, where R (2 60) is a reflectance in any direction opposite to 60 degrees or more. This ratio is preferably 〇 〇〇 5 or less. 000 1 or less. Here, the "anti-glare film manufactured by the method of the angle of reflection of 60 degrees or more" means the range of the angle between 60 degrees and 90 degrees has the typical profile shown in FIG. And in the case of this anti-glare film, the reflectance often has a directional peak and gradually decreases as the reflection angle increases. Therefore, the ratio of 富 6 0 ) / R ( 3 0 ) can be expressed by R ( 6 0 ) / R ( 3 0 ) φ R ( 60 ) is the reflectance at a reflection angle of 60 degrees. When the ratio of R ( 2 60 ) ) exceeds 0. At 001, the anti-glare layer will see white so that the visibility is deteriorated. That is, when a black image is displayed on the display screen, the anti-glare layer is provided on the front of the screen, and the entire screen will see a reflected white color. In the case of the reflection profile shown in Fig. 3, the reflectance R is about 0. 4%, R ( 40 ) is about 0. 0006%, and R (60 0. 00 0 03% ° In addition to the specific reflection profile described above, whitening in accordance with the present invention. Preferably, the specific ratio of the range is preferably an angle of incidence, more preferably any. The reflection of the external reflection square ^ R ( > , where /R ( 30 of the curtain added to the external light (30)) is about anti-glare layer -13 - 200809274 (10) The surface has from 50 μηη 2 to 1,500 μηη2 Preferably, it is a composition of a polygon of an average area of 300 ιη 2 to 1,000 μπι 2, wherein the polygons are formed by using the vertices of the irregularly convex portions as the mother points and voicing the surface. A deductive method for determining the top-point of a convex portion of an irregular surface of an anti-glare layer. When attention is focused on an arbitrary surface of the anti-glare layer.  At the point, if there is no higher height around the arbitrary point than the arbitrary point, and the height of any point on the irregular surface of the φ is higher than the middle point between the highest point height and the lowest point height on the irregular surface At this point, the arbitrary point is the vertex of the convex portion. Specifically, as shown in Fig. 4, any point 81 is selected on the surface of the anti-glare layer. A circle having a radius of 2 μm to 5 μm is drawn using the point 81 as a center of a circle in a plane parallel to the base plane 83 of the anti-glare layer. When there is no point higher than the height of the point 81 in the circle 84 drawn on the surface 83 of the anti-glare layer, and the height of the point 81 is higher than the highest point on the irregular surface The middle 値 height φ between the point heights is determined as the apex of the convex portion. In this case, the projected circle 84 has a radius that does not account for minute irregularities on the surface of the sample, and the circle 84 does not include a plurality of convex portions. Thus, the radius of the circle 84 is preferably about 3 μη. The number of convex portions per unit area of the irregular surface can also be counted by the above method. In order to achieve good visibility without causing reflection or whitening, the number of convex portions counted by the above method is preferably from 50 to 150 in the field of view of 200 μm X 2 0 μm. If the number of convex portions on the irregular surface of the anti-glare layer is small, pixel interference will cause glare to cause the displayed image to become difficult-14-200809274 (11) gaze, especially when the anti-glare polarizing film laminate has a high When the display device of sharpness is used together. Furthermore, the texture of the displayed image will deteriorate. When the number of convex portions is too large, the inclination angle of the irregular shape becomes so steep that the image tends to become white. The number of convex portions in the field of view of 200 μm χ 200 μm is preferably 120 or less and 70 or more. - Now, the Fino division will be explained. When a number of points (ie, - mother points) are scattered on a plane, a graph can be divided into planes by determining a point at which an arbitrary point on the plane is closest to φ, which is a Fu Nuo figure, and The planar segmentation of the graph is called the Fino partition. Fig. 5 is a view showing an example of a vortex segmentation of the surface of the undole-dividing layer using the apex of the convex portion on the surface as a mother point. In Fig. 5, a point 85 is a mother point, and a respective polygon 86 including a mother face is a region formed by the Fino division, and this polygon is referred to as a Fino zone Fino polygon, and is hereinafter referred to as Funno polygon. First.  The area 87 which is darkened around the figure will be described later. In the Fino graph, the number of mother points is equal to the number of Freno polygons. Simply put, in Figure 5, • Numbers 85 and 86 indicate a portion of the parent point and a portion of the polygon, respectively. To calculate the average area of the Funo polygon obtained by using the vertices of the convex portions as the mother point and the Fino division, observe an anti-glare using a suitable device such as a confocal microscope, an interference microscope, an atomic force microscope (AFM), or the like. The surface shape of the layer and the three-dimensional coordinates 测定 are measured. Next, the surface of the anti-glare layer is divided by the following deduction method, and the average area of the Fino polygon is calculated. That is, the irregular surface of the anti-glare layer is determined according to the above deductive method, and then the apex of the convex portion is projected on the base plane of the anti-glare layer. Thereafter, all three-dimensional seats -15-200809274 (12) obtained through the surface shape measurement are projected on the base plane, and all the projection points are assigned to the closest mother face to perform the Fino division. The area of all the Fino polygons is calculated and averaged to obtain the average area of the Fino polygon. In this measurement, the area of the Funo polygon adjacent to the boundary of the measurement field is not counted to minimize the error. That is to say, in the case of Fig. 5, the calculation of the average area 1 does not include the measurement of the faint polygon 87 which is darkened near the boundary of the field of view. In addition, in order to minimize the measurement error, preferably, the average 値 of the Fino polygon is calculated in at least three fields of view each having a field of view of 200 φ μπι X 200 μπι, and then all the average 値 are uniformly and As a measurement 値. As described above, in the present invention, the average area of the Fino polygon having the apex of the convex portion on the irregular surface of the antiglare layer serving as the mother point is from 50 μm 2 to 1, 5 μm 2 , preferably 300 μm 2 to 1. , 〇〇〇μπι2. When the average area of the Froove polygon is less than 50 μm, the irregular shape of the surface of the anti-glare layer will become steep so that the image becomes white. When the average area of the Fu Nuo polygon exceeds 1,500 μm 2 , the irregularity of the anti-glare layer • the surface will become rough, resulting in glare and deterioration of the image texture, especially when the anti-glare polarizing film laminate When used in conjunction with a high-definition display device. Using the three-dimensional coordinates measured here, the arithmetic mean height Pa and the maximum section height Pt of the section curve can be calculated, which are defined by JIS Β 0601 (=1 SO 42 87). Furthermore, the respective point heights on the irregular surface of the anti-glare layer can be described in a rectangular pattern. In order to achieve good visibility without causing reflection or whitening, the arithmetic mean height Pa of the cross-sectional curve is preferably 0. 0 8 μ m to 0. 1 5 μ m, and the maximum section height P t is preferably -16- 200809274 (13) 0. 4 μηι to 0. 9 μπι. When the arithmetic mean height Pa is less than 〇·〇 8 μm, the surface of the anti-glare layer is substantially flat so that it has no anti-glare property. When the arithmetic mean height Pa exceeds 0.15 μm, the surface shape of the anti-glare layer becomes rough, causing problems such as whitening and glare. When the maximum section height Pt is less than 0. At 4 μm, the surface of the anti-glare layer is again - substantially flattened so that it has no anti-glare properties. When the maximum section height Pt.  More than 〇.  At 9 μm, the surface shape of the anti-glare layer becomes rough again, causing problems such as whitening and glare with φ. When the height of a dot on the irregular surface of the anti-glare layer is described in a rectangular diagram, the peak of the histogram preferably has a highest point height (100% height) and a lowest point height (0%) on the irregular surface. The middle 値 (50% height) between the heights is within ±20%. This means that the peak of the histogram is preferably in the range of between 30% and 70% of the height difference between the highest point height and the lowest point height. If the peak does not exist within ±20% of the intermediate enthalpy, in other words, the peak has a range of more than 70% or less than 30% of the height of the highest point, and the surface shape of the anti-glare layer will change. It is so rough that glare tends to occur undesirably. In addition, the texture tends to deteriorate. In order to describe the rectangular map of the heights, the highest and lowest points on the surface of the anti-glare layer (anti-glare film) are measured, and then the difference between the height of the respective measurement point and the height of the lowest point (ie, the height of the measurement point) is divided by the highest point. The difference between the height and the lowest point height (ie, the maximum height difference) is obtained to obtain the relative height of each point. Then, the resulting relative height is described by a rectangular diagram having a maximum height of 100% and a minimum height of 〇% to obtain peak positions of respective points in the histogram. The histogram should be divided into segments to avoid the effects of data errors, and is generally divided into approximately 10 to about 30 segments in the case of -17-200809274 (14). For example, the interval from the lowest point (0% height) to the highest point (100% height) is divided at 5% pitch, and the position of the peak is determined. The anti-glare surface constituting the anti-glare layer having the above characteristics has a shape covered by irregularities having substantially no flat plane. The anti-glare surface having this surface shape can advantageously be used to honing the metal sheet by utilizing the impact of the fine particles.  Irregularly formed, electroless nickel is formed on the irregular surface of the metal plate to form a mold by φ, the surface of the mold is irregularly transferred to the surface of the transparent resin film, and the irregularity of the transfer is removed from the mold. It is made of a transparent resin film. A preferred method for producing an antiglare layer (anti-glare film) by the above method is described with reference to FIG. 6, which schematically shows that the irregularity of the mold is transferred to the resin film using a metal plate as a mold body. A cross-sectional view of the step of having an irregular mold on its surface. Figure 6A shows a cross-section of the metal plate 21 after mirror honing with a honed surface 22. Irregularities are formed on the surface #22 by impacting (or blowing) the honed surface 22 of the metal plate 21 by fine particles. Fig. 6B schematically shows a section of the metal plate 21 after impact, which has a hemispherical fine concave portion 23. Next, a nickel-free electroless plating is used to have an irregular surface formed by impact to eliminate such irregular depths. Fig. 6C is a view schematically showing the cross section of the metal plate 21 after electroless plating of nickel. In Fig. 6C, a nickel plating layer 24 is formed on the surface of the metal plate 21 having a fine concave portion, and the nickel plating layer 24 has a depth reduced by electroless plating of nickel compared to the surface 26 of Fig. 6B. The irregularity 'that is, the irregular shape of the surface of the metal plate is dulled. Thus, when the semi-spherical fine concave portion 23 -18- 200809274 (15) of the metal plate 21 is electrolessly plated with nickel, substantially no flat plane can be obtained and it is suitable for fabricating a preferred optical property. An irregular pattern of anti-glare film. Fig. 6D schematically shows the step of irregularly transferring the mode of Fig. 6C formed in the previous step to the resin film. That is, a resin film is formed on the irregular surface of the nickel plating layer 24. Thereby, a film 11 having a transferred irregular shape is obtained. The film 11 can be composed of a single thermoplastic transparent resin film. In this case, the thermoplastic resin film in a heated state is pressed to the irregular surface 26 of the φ mold and formed by hot press. Alternatively, as shown in Fig. 6D, the film 11 may be composed of a transparent substrate film 12 and an ion-radiation-curable resin layer 13 laminated on the surface of the substrate film 12. In this case, the ionizable radiation-curable resin layer 13 is brought into contact with the irregular surface 26 of the mold and irradiated by ionizing radiation to cure the resin layer 13. Thereby, the irregular shape of the mold is transferred to the ionizable radiation-curable resin layer 13'. These films will be described later. Fig. 6E is a schematic cross-sectional view showing the film 11 after being removed from the mold. • In the method shown in Fig. 6, preferred examples of the metal used for the manufacture of the mold include aluminum, iron, copper, stainless steel, and the like. Among them, it is preferable that the metal is easily deformed by the impact of fine particles, that is, it is not too high in hardness. In particular, it is preferred to use aluminum, iron, copper or the like. In terms of cost, it is better to be aluminum and soft iron. The mold may be in the form of a flat metal plate or a cylindrical metal roll. When an roll-shaped mold is used, the anti-glare film can be continuously produced. 微 The fine particles are used to strike or blow the metal having the honed surface. In particular, the metal is preferably honed to a near-mirror state because the gold -19-200809274 (16) plate or roller is often machined by, for example, cutting or honing to achieve the desired accuracy, and The processing marks are often left on the surface of the metal body. If a deep mark is left, the surface of the metal body may have trace marks after impact with fine particles, because the depth of some marks is larger than the irregular depth formed by the fine particles, so that a trace of deep marks may be The optical properties of the anti-glare layer have an unexpected effect. - The method for honing the metal surface is not limited, and any of mechanical honing φ, electrolytic honing and chemical honing can be used. Examples of the mechanical honing include an ultra-finishing method, a fine boring method, a fluid honing method, a buffing wheel honing method, and the like. The surface roughness after honing is 1 micrometer or less, preferably 0. 5 microns or less, more preferably 〇.  1 micron or less. When Ra is too large, the influence of the surface roughness before the deformation may be after the deformation of the metal surface by the impact of the fine particles. The lower limit of Ra may be unlimited, but may be limited from the viewpoints of processing time, processing cost, and the like. # The method of striking the metal surface with fine particles is preferably a blow processing method. Examples of the blowing method include a sandblasting method, a spray method, a liquid honing method, and the like. Regarding the particles used in these treatments, those having a shape close to a sphere are better than those having a sharp edge. Furthermore, the particles of the hard material are preferred because they do not break when processed to form sharp edges. Preferred examples of the ceramic ceramic particles satisfying those properties are spherical cerium oxide particles, alumina particles and the like. Examples of preferred metal particles are steel, stainless steel, and the like. Further, it is possible to use a composition comprising particles having ceramic or metal particles on a resin binder. -20- 200809274 (17) When particles having an average particle size of 10 to 75 μm, preferably 10 to 35 μm, in particular, spherical fine particles are used as fine particles impinging on the surface of the metal, a kind of fine particles can be produced An anti-glare film that satisfies a shape factor comprising an average area of a Funo polygon defined in accordance with the present invention in the range of 50 μηι2 to 1,500 μπι2, preferably 300 μηι2 to 1,000 μηι2. Regarding 'the fine particles, which have a uniform particle size, that is, especially good.  A single distribution of particles. When the average particle size of the fine particles is too small φ, it will be difficult to satisfy irregularities on the surface of the metal. In addition, the tendency angle of the irregular shape becomes so steep that the image tends to become white. When the fine particles are too large, the surface irregularities become rough so that glare may occur, and the texture of the image may be deteriorated. The irregular metal surface formed by the above method is then electrolessly plated with nickel to reduce the irregular depth. The degree of depth reduction depends on the type of metal, the irregular size and depth of the blown film, the type and thickness of the nickel plated, and the like. The most important factor controlling the degree of depth reduction # can be the thickness of the plated nickel. If the thickness of the electroless nickel plating is too small, the irregular depth formed by the blowing or the like may not be effectively reduced, so that the optical properties of the irregular anti-glare film transferred from the mold may not be sufficiently improved. When the thickness of the electroless nickel is too large, the productivity will be lowered. Thus, the thickness of the electroless nickel plating is preferably from about 3 to 70 μm, more preferably at least 5 μm and 50 μm or less. In order to form a plating layer on a metal surface, it is preferred to use an electroless plating which can form a plating layer having a giant uniform thickness on the metal plate or roll, and in particular, to provide a plating layer having a high hardness without electricity. Nickel plating. The electroless-21 - (18) 200809274 preferred examples of nickel plating include the use of a plating bath containing a gloss agent such as sulfur, nickel-phosphorus alloy plating (low phosphorus type, medium phosphorus type or high phosphorus type). Glossy nickel plating, nickel-boron alloy plating, etc. If the hard chrome plating described in JP-A-2002- 1 89 1 06 is used, in particular, electrolytic chrome plating, the electric field tends to concentrate on the edge of the metal plate or roll so that the thickness of the plating metal at the center and the edge may be different. Therefore, if it is blown.  And forming a random φ having a uniform depth on the entire surface of the metal plate or the roller, the degree of depth reduction of the plating may vary with the position on the entire surface of the metal plate or the roller, and as a result, the The depth of the rules changes. Therefore, electrolytic plating is not suitable for use in the present invention. Furthermore, the hard chrome plating can form a rough surface and thus is not suitable for the manufacture of a mold for manufacturing the anti-glare layer. To remove the rough surface, the hard chrome plated surface is typically honed. However, honing of the plating surface as explained below is not suitable for use in the present invention. However, the present invention does not include the formation of a thin chrome plating on the outermost φ face after the electroless nickel plating, that is, a so-called flash chrome plating to provide surface hardness. If flash chrome plating is performed, the thickness of the flash chrome layer is as small as possible to avoid deterioration of the shape of the electroless nickel-plated layer serving as the underlayer, and preferably should be 3 μηι or less, more preferably 1 μπι or less. Further, in the present invention, it is not preferable to honing the metal plate or the roll after plating in a manner as disclosed in JP-A-2004-901 87. If the plated surface is honed, the outermost surface may have a flat portion such that the optical properties of the anti-glare layer may be deteriorated, and the irregular shape is hardly controlled with good productivity' because the number of control factors formed will be improve. Figure 7 is a schematic representation of -22-200809274 (19) A flattened metal plate is formed thereon by honing an irregular surface formed by the impact of fine particles, which have been electrolessly plated with nickel. Reduce the amount of application. That is, Fig. 7 corresponds to the electroless plated metal plate of Fig. 6C which is honed on the surface of the nickel plating layer 24. As a result of the honing, a portion of the convex portion of the surface irregularity 26 formed on the nickel plating layer 24 on the metal plate 21 is honed and thereby forms the flat plane 29. .  According to the present invention, an irregular mold having a surface φ formed on the surface φ shown in Fig. 6C is used, and the irregular shapes are transferred to the surface of the film 1 1 to form an anti-glare surface. In this case, the surface shape of the mold can be transferred to the surface of the film by any conventional method. For example, a thermoplastic resin film is hot pressed to the irregular surface 26 of the mold to irregularly transfer the surface of the mold to the surface of the resin film; an ion-radiation-curable resin is coated on the surface of the transparent resin film, and then The ionizable radiation-curable resin coating in an uncured state is tightly adhered to the irregular surface 26 of the mold and is irradiated with ionizing radiation through the 'transparent resin film to cure the ionizable radiation-solidified resin The surface of the mold is irregularly transferred to the surface of the cured ion-radiation curable resin. After the transfer, the film is removed from the mold as shown in Fig. 6E to obtain the anti-glare film 11. The latter method using an ion-radiation-curable resin is preferred from the viewpoint of mechanical strength such as prevention of surface cracks and the like. The transmission resin used in the latter method described above may be any film having substantial light transparency. Specific examples of the transparent resin include cellulose resins (e.g., triethylenesulfonyl cellulose, diethyl cellulose, cellulose acetate propionate, etc.), cycloolefin polymers, polycarbonate, polymethacrylic acid. Methyl ester-23- 200809274 (20), poly maple, ether ether, polyvinyl chloride and so on. The cycloolefin polymer is a cyclic olefin comprising, for example, norbornene, dimethyl octahydronaphthalene or the like as a monomer. Examples of commercially available cyclic olefin polymers are ARTON (registered trademark) (available from JSR Ltd.), ZEONOR® and ΖΕΟΝΈΧ® (both available from ΖΕΟΝ). - Among them, for example, polymethyl methacrylate, polycarbon at appropriate temperature.  A thermoplastic translucent resin film of an acid ester, a polyfluorene, an ether ether, a cycloolefin polymer or the like is pressed or pressure-bonded to a mold having a surface irregularity, and then peeled off from the mold to thereby leave the surface of the mold The rules are transferred to the surface of the membrane. Further, a polarizing plate is used as a transparent film and the surface irregularity of the mold can be directly transferred to the surface of the polarizing plate. When the ion-radiation-curable resin is used to transfer the surface irregularity of the mold, it is preferred to use a polymer having a compound having at least one acryloxy group in the molecule. In order to increase the mechanical strength of the antiglare layer, it is more preferred to use an acrylate having at least three functional groups, that is, a compound having at least three φ acryloxy groups. Specific examples of the compound include trimethylolpropane triacrylate, trimethylolethane triacrylate, glycerol triacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, dipentaerythritol hexaacrylate, and the like. In order to impart flexibility to the antiglare layer to prevent the antiglare layer from being broken, it is preferred to use an acrylic compound having a urethane bond in the molecule. A specified example of the acrylic compound is to add two compound molecules (for example, trimethylolpropane triacrylate, pentaerythritol triacrylate, etc.) having at least one hydroxyl group in addition to the acryloxy group in the molecule to the diisocyanate compound ( For example, hexamethylene diisocyanate, diisocyanate-24 - 200809274 (21) acid toluene diester, etc.). Further, other acrylic resins which are free radically polymerized and cured via ionizing radiation, such as ether acrylate polymers, ester acrylate polymers and the like, may be used. Further, a cationically polymerizable ion-radiation-curable resin such as an epoxy resin, an oxetane resin or the like can be used as the resin imparted after the curing. In this case, the cationically polymerizable ionizable radiation.  An example of the cured resin can be, for example, 1,4-bis[(3-ethyl-3-oxoφ heterocyclobutyrylmethoxy)methyl]benzene, bis[(3·ethyl-3-) Cationic polymerizable polyfunctional oxetane compounds such as oxetanyl methoxy)methyl]ether and the like, and, for example, hexafluorophosphate (4-methylphenyl) [4-(2-A) A cationic photopolymerization initiator of propyl)phenyl]anthracene or the like is prepared. When the ionizable radiation-curable acrylic resin is cured by irradiation with UV rays, a UV radical polymerization initiator which generates radicals by irradiation of UV rays to initiate polymerization and curing reaction is used. The UV rays are usually irradiated from the side of the glass mold or the transparent resin film. Thus, when UV rays are irradiated from the side of the transparent tree # lipid film, a polymerization initiator which initiates a radical generating reaction in the visible light to UV ray range is used in the range of the UV ray wavelength in which the light is permeable to the film. Initiating a free radical reaction. Examples of the u V-ray radical polymerization initiator which initiates the radical generating reaction by irradiation with UV rays include 1-hydroxycyclopropyl phenyl ketone, 2-methyl-bu [4-(methylthio)phenyl] -2·morpholinylpropan-1-one, 2-hydroxy-2-methyl-1-phenylpropan-1-one, and the like. When the UV ray is irradiated through a transparent resin film containing a UV ray absorbing agent, a radical photopolymerization initiator having an absorption range in the visible light wavelength range is used. Examples of the initiator include -25.200809274 (22) bis(2,4,6-trimethylbenzylidene)phenylphosphine oxide, bis(2,6-dimethoxybenzylidene oxide) 2,4,4-trimethylphenylphosphine, 2,4,6-trimethylbenzimidyl diphenylphosphine, and the like. When the mold system is in the form of a flat plate having a fine irregular plating surface on the surface, the irregular surface of the mold can be bonded to the transparent resin film with the uncured ion radiation curable resin coated to the other side. The layer contact causes the coating of the cation-curable resin to adhere tightly to the irregular surface of the mold, and the ionizing radiation is irradiated from the side of the transparent resin film to cure the ion-radiation-curable resin. Thereafter, the cured layer of the ion-radiation-curable resin and the transparent resin substrate film are removed from the mold. Thereby, the irregular shape of the mold is transferred to the ion-radiation-curable resin cured layer carried on the transparent resin film. When the mold system is in the form of a roll having a fine irregular plating surface on its peripheral surface, the irregular shape of the mold is transferred to the ion-radiation-curable resin, and the ionizable radiation is used to illuminate the ionizable radiation. a cured resin layer and a laminate of the transparent resin film while contacting the ion-radiation-curable resin layer with a peripheral surface of the mold in the form of the roll, and then removing the cured layer of the ion-radiation-curable resin from the mold And the transparent resin film 1 by which the irregular shape of the mold is transferred to the ionizable radiation-curable resin cured layer carried on the transparent resin film. The ionizing radiation can be a UV ray or an electron beam. From the viewpoint of ease of handling and safety, it is preferred to use the uv ray. As the light source of the u V ray, a high pressure mercury lamp, a metal halide lamp or the like is preferably used. When irradiated through a transparent resin film containing a UV absorber, -26-200809274 (23) It is particularly preferable to use a metal halide lamp including a large amount of visible light components. Further, "V-light bulb" and "D-light bulb" (two registered trademarks) (available from Fusion UV Systems JAPAN Co., Ltd.) are preferably used. The ionizing radiation intensity sufficiently cures the UV curable resin to a degree such that the cured film can be removed from the mold. In order to improve the surface hardness, the ionizable radiation may be irradiated from the side of the ionizable radiation-curable resin layer.  A cured layer of the cured resin and a laminate of the transparent resin layer. φ According to the above method, an anti-glare layer (anti-glare film) having a haze of 5% or less can be obtained. Turbidity is defined by JIS K 7136 and is expressed by (diffraction transmittance / total light transmittance) xl 〇〇 (%). As described above, an ion-radiation-curable resin cured layer having a fine irregular pattern having substantially no flat surface thereon and transferring the irregular shape to a transparent resin film or a layer laminated on the transparent resin film is used. At this time, the anti-glare surface of the transparent resin film will have a fine irregularity in which the face has substantially no flat flat surface. Φ In the present invention, as described above with reference to Fig. 1, the antiglare layer 11 manufactured as described above is placed on the surface of the linear polarizing film 30, and the optically anisotropic layer 40 is placed in the linear polarized light. The anti-glare polarizing film laminate 1 〇 is formed on the other surface of the film 30. The linear polarizing film 30 may be a commonly used polarizing film or plate that allows linearly polarized light that oscillates in one of two directions perpendicular to each other in the plane of the film to pass through, while the other will absorb the other in the two directions. One is oscillating linearly polarized light. A specific example of such a linear polarizing film is a uniaxially stretched polyvinyl alcohol film which is dyed with a high dichroic dye and crosslinked with boric acid. A polarizing film comprising a 127-200809274 (24) polarizing film containing iodine as a high coloring dye as a base or a dye comprising an organic dichroic dye serving as a high dichroic dye may be used. The linear polarizing film may be a polyvinyl alcohol type polarizing film for this or the like, or a polyvinyl alcohol type polarizing film having a transparent polymer protective film having, for example, triacetyl cellulose or the like on its surface. The optical anisotropy layer 40 placed on the other surface of the linear polarizing film 30 has an optical axis of optical negative or optical positive uniaxiality and an angle of 5 - to 50 degrees from the normal direction of the film. 0 First, an optically anisotropic layer having an optical negative uniaxiality and an optical axis inclined at an angle of 5 to 50 degrees from the normal direction of the film will be described. "Light negative uniaxiality" means a layer having a negative anisotropic refractive index, that is, the refractive index of the optical axis is smaller than the average refractive index in a plane perpendicular to the optical axis. As the optically anisotropic layer 40, a layer having an optical axis having such negative refractive index anisotropy and inclined at an angle of 5 to 50 degrees from the normal direction of the film can be used. A preferred example of the optically anisotropic layer is a transparent film made of, for example, triethyl fluorenyl cellulose, which is an organic compound, and is a ' JP_A-06- a compound having a liquid crystallinity and a discotic molecular shape as described in 214116, or having no liquid crystallinity but exhibiting negative refractive index anisotropy via application of an electric field or a magnetic field and wherein the orientation of the optical axis is inclined from the normal direction of the film 5 to 50 degrees of compound coating. The orientation of the optical axis can be a single direction orientation, or the angle of inclination of the optical axis from the surface of the film to another gradually increasing mixing orientation. Examples of the organic compound having a liquid crystallinity and a discotic molecular shape include a low or high molecular weight discotic liquid crystal 'for example comprising at least one linear substituent (e.g., an anthracene group, an alkoxy group, an alkyl-substituted benzamidineoxy group, a Alkoxy-28-200809274 (25) A substituted benzyl methoxy group, etc.) a liquid crystal compound which is nucleated to the core of the planar structure (for example, triphenylene, fluorene benzene, benzene, etc.). Among them, it is preferred that there is no absorber in the visible light range. These organic compounds having a discotic molecular structure may be used singly, or they may be used in a mixture of two or more of them or mixed with an organic compound such as a polymer matrix to achieve the desired orientation of the present invention. The organic compound may be any compound which has a φ content with an organic compound having a discotic molecular structure or an organic compound having a discotic molecular structure dispersed in a particle size which does not scatter light. A transparent film having a cellulose resin-based layer having the liquid crystal compound and an optical axis inclined from the normal direction of the film is a "WV film" (registered trademark, available from FUJIFILM Co., Ltd.), which can be used in the present invention. in. Next, an optically anisotropic layer having an optical positive uniaxiality and an optical axis inclined at an angle of 5 to 50 degrees from the normal direction of the film will be described. "Photopositive uniaxiality" means a layer having a positive anisotropic refractive index, that is, the refractive index of the optical φ axis is larger than the average refractive index in a plane perpendicular to the optical axis. As the optically anisotropic layer 40, a layer having such an anisotropic refractive index and an optical axis inclined at an angle of 5 to 50 degrees from the normal direction of the film can be used. A preferred example of the optically anisotropic layer is a transparent film made of, for example, triethyl fluorenyl cellulose, which is based on JP-A-1 Ο-ΐ 8 63 56 An organic compound having a rod-like structure, particularly a compound having a nematic crystallinity and imparting a positive optical anisotropy to the compound, or having no liquid crystallinity but exhibiting a positive refractive index via application of an electric field or a magnetic field Anisotropic and in which the orientation of the optical axis is such that it is coated with a compound that is inclined 5 to 50 degrees from the normal direction of the film -29-200809274 (26). The orientation of the optical axis can be a single direction orientation, or a mixing orientation in which the tilt angle of the optical axis gradually increases from one surface of the film to the other. An example of a transparent film having such a nematic liquid crystal compound layer and an optical axis inclined from the normal line of the film is "NH film" (available from NIPPON OIL Co., Ltd.), which can be used in the present invention. .  Furthermore, an optically anisotropic layer having an optical positive uniaxiality and an optical axis inclined at an angle of 5 to φ 50 degrees from the normal direction of the film can be produced by depositing a dielectric on a transparent base film. The dielectric can be formed into a thin film by vacuum deposition, and when deposited on the transparent base film, exhibits positive refractive index anisotropy in a direction oblique to a normal to the base film. The dielectric compound used for this purpose may be an inorganic or organic dielectric compound. Among them, an inorganic dielectric compound is preferred from the viewpoint of resisting heat stability in the vacuum deposition step. Preferable examples of the inorganic dielectric compound include, for example, molybdenum oxide ('Ta203), tungsten oxide (W03), cerium oxide (SiO2), cerium oxide φ (SiO), cerium oxide (Bi203), cerium oxide (Nd203). Etc. because these metal oxides have good transparency. Among the metal oxides, oxidized giant, tungsten oxide, cerium oxide or the like is more preferable because they are easy to exhibit refractive index anisotropy and form a hard film. As described above, the anti-glare layer 11 is laminated on one surface of the linear polarizing film 30, and the optically anisotropic layer 40 is laminated on the other surface of the linear polarizing film 30 to form the anti-glare polarizing film. Membrane layer 10 (Fig. 1). In the step of laminating, the anti-glare layer 11 is laminated to face the surface (ie, the irregular surface) treated to impart the anti-glare property, and -30-200809274 (27), that is, the surface is not facing the surface. Linear polarizing film 30. When the optically anisotropic layer 40 has a layer of a material exhibiting refractive index anisotropy on the transparent base film, the optically anisotropic layer 40 is laminated such that the transparent base film faces the linear polarizing film 30. In order to laminate them, it is advantageous to use an adhesive having good transparency such as an acrylic adhesive. 'About the commercially available laminates, optical φ anisotropic layers bonded to optical axes with optical negative, uniaxial and oblique from 5 to 50 degrees from the normal to the film are sold to linear polarized light. A polarizing plate composed of one surface of the film, that is, a laminated body composed of the linear polarizing film 30 and the optical anisotropic layer 40. An example of such a commercially available laminate is "SUMIKARAN SRH 862A" (available from Sumitomo Chemical Co., Ltd.). In order to form the anti-glare polarizing film laminate 10, the anti-glare layer 11 is laminated on the other surface of the laminated polarizing plate having an optically anisotropic layer on one surface, the optically anisotropic layer having a light-reducing sheet Axiality and an optical axis inclined from the normal to the film by 5 to 50 degrees. # The anti-glare polarizing film laminate 10 in Fig. 1 is combined with a liquid crystal cell including TN liquid crystal sandwiched between a pair of substrates to mount a liquid crystal display. Examples of this liquid crystal display are shown in Figures 8 and 9. In these examples, the liquid crystal cell 50 includes a TN liquid crystal 57 sandwiched between a pair of unit substrates 51 and 52, and the surfaces of the substrates facing each other have individual electrodes 5 4 and 55. In general, the liquid crystal cell 50 has polarizing plates on both surfaces thereof. According to the present invention, one of the polarizing plates, in particular, a polarizing plate on its display surface, in other words, the linear polarizing film 30 having the anti-glare layer 11 / -31 - 200809274 (28) shown in Fig. 1 The surface of the liquid crystal cell composed of the anti-glare polarizing film laminate 1 of the structure of the optically anisotropic layer 40 is visible to the viewer. In this case, the polarizing plate is placed such that the optical anisotropic layer 40 faces the liquid crystal cell 50. The optically anisotropic layer 40 of the antiglare polarizing film laminate 10 is adhered to the liquid crystal cell 50 by the adhesive 60. On the back side of the liquid crystal cell 50, a backlight 70 is provided and serves as a light source for the liquid crystal cell 50. The structure of the anti-glare polarizing film laminate 1 〇, the liquid crystal cell 50, and the backlight 70 is the same as that of the eighth and ninth figures, but the structure between the liquid crystal cell 50 and the backlight 70 is different from each other. . In the specific example of Fig. 8, the polarizing plate 35 is provided on the back surface of the liquid crystal cell 50 by the adhesive 60, and in Fig. 9, the optical agent 60 is used to provide optical on the back surface of the liquid crystal cell 50 in the following order. The anisotropic layer 45 and the polarizing plate 35. The polarizing plate 35 on the back side may be a conventional polarizing plate that allows linearly polarized light oscillating in one of two directions perpendicular to each other in the plane of the film to pass through, but absorbs the other according to the two directions One is oscillating linear φ polarized light. Specifically, the conventional polarizing plate may comprise a uniaxially stretched polyvinyl alcohol film which is dyed with a high dichroic dye and crosslinked with boric acid, and which film usually has a transparent polymer on at least one surface thereof. The optically anisotropic layer 45 provided on the back surface side shown in FIG. 9 may be an optical axis having optical negative or optical positive uniaxiality and inclined at an angle of 5 to 50 degrees from the normal direction of the film, similarly used. The optically anisotropic layer 40 of the antiglare polarizing film laminate 10 is used. In order to improve the viewing angle characteristics and display characteristics, it is preferable to provide the optical anisotropic layer 45 also on the back surface side shown in Fig. 9. In this case, -32- 200809274 (29) comprises a linear polarizing film and an optically anisotropic layer having an optical negative uniaxiality and an optical axis inclined at an angle of 5 to 50 degrees from the normal direction of the film, The polarizing plate is bonded to one surface of the linear polarizing film, and the polarizing plate can be used as the laminated sheet of the optical anisotropic layer 45 and the polarizing plate 35 of FIG. _ Example .  In the following, the invention will be exemplified by the following examples, which are not intended to limit the scope of the invention in any way. Example 1 (a) Manufacture of a mold A mirror honing surface having an aluminum roller having a diameter of 300 mm (according to JIS A5056). Next, using a blowing device (purchased by FUJI MANUFACTURING Co., Ltd.), at 0. Zirconium beads "TZ-SX-17" (Note #, available from TOSO Co., Ltd.; average particle diameter: 20 μm) sprayed under a pressure of 1 MPa (gauge pressure, the same below) The aluminum roller is blown to the peripheral surface of the mirror honing to form irregularities on the surface. A metal mold was obtained by electrolessly plating nickel with an aluminum roller having an irregular surface. These plating conditions were adjusted to form a nickel layer having a thickness of 12 microns. After the plating, the thickness of the nickel layer was measured by a β-ray film thickness meter ("Fisher Scope MMS" available from Fischer Instruments Co., Ltd.). 3 microns. (b) Manufacture and evaluation of anti-glare film -33- (30) 200809274 The photocurable resin composition "GRANDIC 806T" (registered trademark, available from DAINIPPON INK AND C Ε Μ Μ IC ALS Co., Ltd.) is dissolved in acetic acid. Ethyl ester to obtain a solution having a concentration of 50%, and then, in an amount of 5 parts by weight, based on the amount of 100 parts by weight of the curable resin, a photopolymerization initiator "LUCILIN TPO" (available from BASF Co., Ltd.; Name: Oxidized 2,4,6-trimethylbenzimidyldiphenylphosphine) is added to the solution.  The coating composition was obtained. This coating composition was coated on a triethylenesulfonated cellulose (TAC) film having a thickness of 80 μm to make the coating thickness after drying to 5 μm, followed by drying in a desiccator maintained at 60 t for 3 minutes. . The dried TAC film was pressed and the irregular surface of the metal mold obtained in (a) was tightly contacted with a rubber roller to face the nickel-plated surface of the mold. In this state, light from a high-pressure mercury lamp having a strength of 200 mJ/cm 2 was irradiated from the TAC film side at an intensity of 20 mW/cm 2 by an h-ray conversion ray meter to cure the photocurable resin. Composition. Thereafter, the TAC film with the cured resin layer was removed from the mold to obtain a transparent anti-glare film composed of a laminate having a surface irregularly cured resin layer and the TAC film. The turbidity of the anti-glare film was measured using a turbidity meter "ΗΜ·150" according to Jis K 7136 (available from MU r a k a m i C ο 1 〇 r R e s e a r c h L a b 〇 r a t 〇 r y), and it was 0. 9%. For measurement, the anti-glare film sample was adhered to the glass plate with an optically clear adhesive to prevent the warpage from being irregular. The image clarity measuring instrument "ICM-1DP" (available from Suga Test Instruments Co., Ltd.) was used in accordance with JIS K 7105 to measure transmission -34-200809274 (31). For measurement, the anti-glare film sample was adhered to the glass plate using an optically clear adhesive to prevent the warpage. Next, the sample was irradiated with light from the back side (the surface was in contact with the glass plate), and the transmission sharpness was measured. The results are as follows: Optical frequency comb with the following width: Transmission clarity 0. 125 mm 3 1. 2% 0. 5 mm 2 7. 9% 1. 0 mm 3 2. 1% 2. 0 mm 5 7. 0 % total 14 8. 2%

The reflection sharpness was measured using the same image sharpness measuring instrument "ICM-1DP" used for the above transmission resolution measurement. For measurement, the anti-glare film sample was adhered to the glass plate using an optically clear adhesive to prevent warpage. In order to suppress reflection on the back side of the back glass, a black acrylic resin sheet having a thickness of 2 mm was adhered to the exposed surface of the glass plate to which the antiglare film was adhered by water. In this state, measurement was performed by irradiating light from the sample side of the anti-glare film. The results are as follows: Optical frequency comb with the following widths: Reflective sharpness 0.125 mm 3.2%* 0.5 mm 1.5% 1.0 mm 5.4% 2.0 mm 14.8 % Total 2 1.7%: Exclusion of the self-reflection resolution. -35 - 200809274 (32) Irradiating the irregular surface of the anti-glare film with a parallel beam of ammonia-helium laser tilted from the film normal at a direction of 30 degrees and measuring in a plane including the film normal and the direction of illumination The reflectance changes to measure the reflectivity. The reflectance "3 292 03 optical power sensor" and "3292 optical power meter" (both available from Yokogawa Electric Co., Ltd.) were used to measure the reflectance. As a result, R (30) was 0.374%, R (40) was 0.00064%, and R (60) / R (30) was 0.0001 0. The surface shape of the anti-glare film was observed using a confocal microscope "Ρίμ2300" (available from Sensofar Co., Ltd.). For observation, the anti-glare film sample was adhered to the glass substrate with an optically transparent adhesive and the irregular surface was outward to prevent warpage. The magnification of the objective lens is 50. The obtained data was processed according to the above deductive method and the average surface area of the Funno polygon was calculated to be 5 82 square micrometers. From the three-dimensional coordinate information, it is confirmed that the entire surface of the anti-glare film has fine irregularities but no flat portion. The conditions for producing the mold and the optical properties and surface condition of the anti-glare film (the average area of the Funno polygons) are summarized in Table 1. Based on the three-dimensional coordinates obtained from the observation of the surface shape, the number of vertices of the convex portion in the field of view of 200 μηι χ 2 00 μm, the arithmetic mean height Pa of the section curve and the maximum section height Pt, and the peak positions of the height rectangles are calculated. The results are shown in Table 2. (c) Manufacture of an anti-glare polarizing film laminate A linear polarizing film/optical anisotropic layered body ("-36-200809274 (33) SUMIKARAN SRH 862A" available from Sumitomo Chemical Co., Ltd.) was provided. The laminate is composed of a linear polarizing film based on polyvinyl alcohol and iodine, an optically anisotropic layer adhered to one surface of the linear polarizing film, and a triacetyl cellulose film adhered to the other surface of the linear polarizing film. Composed of. The optically anisotropic layer is composed of a substrate and discotic liquid crystal molecules having an optically negative uniaxiality and fixed to the substrate, and has a mixed orientation such that the optical axis thereof is gradually inclined from the normal line of the film. In the range of up to 50 degrees and overall, the surface φ axis is inclined by 18 degrees from the normal ("WV film", available from FUJIFILM Co., Ltd.). The flat surface of the anti-glare film obtained in (b) was adhered to the triacetyl cellulose film side of the linear polarizing film/optical anisotropic layered body to assemble an anti-glare polarizing film laminate. (d) Manufacturing and evaluation of liquid crystal display A polarizing plate was removed from the surface and the back surface of a monitor display commercially available for use in a personal computer with a TN type TFT liquid crystal display device. Then, instead of the original polarizing plate, the linear polarizing film/optical anisotropic layered layer "SUMIKARAN SRH 862A" is adhered to the back surface with an adhesive so that the absorption axis of the laminated body corresponds to the absorption axis of the original polarizing plate and The optically anisotropic layer faces the liquid crystal cell, and the anti-glare polarizing film laminate produced by (e) is adhered to the surface of the display by an adhesive so that the absorption axis of the film laminate corresponds to the absorption axis of the original polarizing plate. The optically anisotropic layer faces the liquid crystal cell. Therefore, a liquid crystal display having an anti-glare layer is mounted to activate the personal computer in a dark room, and a black display state or a white display is measured using a luminance meter "BM5A" -37-200809274 (34) (available from TOPCON Co., Ltd.). The brightness of the LCD in the state, then calculate the contrast. Here, the contrast is expressed by the ratio of the brightness of the white display state to the brightness of the black display state. As a result, after the liquid crystal display contrast measured in the dark room was 5 69 〇 ~, the evaluation system was moved to the bright room, and the reflection on the display in the black, display state was visually observed. As a result, substantially no inverse φ shot was observed. This confirms that the liquid crystal display has good anti-glare properties. The results are summarized in Table 3. Examples 2 and 3 A metal mold having an irregular surface was produced in the same manner as in Example 1 except that the thickness of the nickel plating layer was changed as shown in Table 1. Using the metal mold thus obtained, a transparent antiglare film composed of a random cured resin layer and a TAC film on the surface thereof was produced in the same manner as in Example 1. The optical characteristics and surface state of the anti-glare film thus obtained (the average area of the Fino polygons) are summarized in Table 1. Using the respective films, the number of vertices of the convex portion in the field of view of 200 μm χ 200 μm, the arithmetic mean height Pa of the section curve, and the maximum section height Pt, and the height profile of the height are calculated by the same method as in the first embodiment. Peak position. The results are shown in Table 2. Further, these films were used in the same manner as in Example 1 to assemble a liquid crystal display having an anti-glare layer, and the contrast and anti-glare properties were evaluated. The results are shown in Table 3. The transmission resolutions shown in Table 1 were measured using four optical frequency combs each having a black fraction of 〇. 1 25 -38 - 200809274 (35) mm, 0.5 mm, 1·0 mm, and 2·0 mm width, respectively. The obtained transmission resolution sum is measured by using three kinds of optical frequency combs each having a dark portion and a bright portion of 0.5 mm, 1.0 mm, and 0, and comparative examples 1 to 5 φ for comparison, using each as the polarized light. Board | (Available from Sumitomo Chemical Co., Ltd. for the protection of "AG3", "AG5", "AG6" and "AG8" 1 to 5) which are dispersed in UV curable resin, and those anti-glare The uniform area of the Fino polygon of the film is recorded together with the results of Examples 1, 2 and 3: using those films, the flat three-dimensional coordinates of the Fino polygons are calculated, and the field of view of Φ μπι is calculated in the same manner as in Embodiment 1. The number of vertices of the convex portion, the average height Pa, and the maximum section height Pt, and the positions. The results were compared with the results of Examples 1, 2 and 3. Further, the liquid crystal display of this anti-glare layer was used in the same manner as in Example 1, and the contrast was evaluated and the results of Examples, 2 and 3 were recorded together in the dark portion and the bright portion of Table 3, and the reflection was clear 匕 2.0. The reflection resolution of the mm width is total _ SUMIKARAN") anti-glare film and contains 1 smear film "AG1", (the optical properties of the comparative example and the flat load are shown in Table 1. The average area is measured - in The peaks of the arithmetical rectangle of the 200 μπιχ200 section curve are recorded together in Table 2. Some of the membranes are assembled to have glare properties. The result will be. -39- 200809274 (36)

Average shape of surface shape Funo polygon (μιη2) (N CN m m m in mm 2,084 1,762 546 384 345 Optical properties § 0.00010 0.00018 0.00004 0.00018 0.00008 0.00145 0.00639 0.00148 Reflex Temple g | 0,00064 0.00221 0.00013 0.00259 0.00113 0.00409 0.00582 0.00452 g 0.374 0.125 0.726 0.368 0.568 0.100 0.042 0.099 Reflection resolution (%) 21.7 17.9 38.2 15.7 20.1 23.2 21.7 30.3 Clear transmission! (%) 148.2 126.3 191.6 52.1 97.1 65.9 40.9 199.8 Turbidity (%) 〇sm inch Ο (NO 3.6 3.4 10.7 20.1 10.9 Molding conditions Nickel plating thickness μηι) 12.3 11.6 19.3 AG1 AG3 AGS AG6 AG8 Injection pressure (MPa) tH vH ooo ^=r? ·ρΤ7 t=7 i§N i§\ Change grip 13⁄4 13⁄4 { $i (Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 - 40 - 200809274 (37)

Surface shape of anti-glare film (continued) Number of vertices of convex portion in 200 μπιχ200 μπι field of view Mathematical average height Pa (pm) Maximum cross-sectional height Ρί(μηι) Peak position of the point in the height histogram (%) Example 1 76 0.089 0.493 45-50 Example 2 119 0.127 0.688 45-50 Example 3 79 0.117 0.615 50-55 Comparative Example 1 18 0.184 0.933 25-30 Comparative Example 2 22 0.220 1.088 20-25 Comparative Example 3 78 0.190 1.107 20-25 Comparative Example 4 114 0.284 1.615 20-25 Comparative Example 5 139 0.157 0.865 20-25 Table 3 Evaluation of Liquid Crystal Display

Contrast anti-glare property 1) Example 1 5 69 A Example 2 495 A Example 3 61 1 A Comparative Example 1 492 B Comparative Example 2 420 B Comparative Example 3 3 82 A Comparative Example 4 33 7 A Comparative Example 5 409 A Notes: 1) Anti-glare property A: Has sufficient anti-glare properties B: Does not have sufficient anti-glare properties (with high reflection) As shown in Tables 1 and 3, the samples of Examples 1, 2 and 3, It conforms to the definition of turbidity, reflective profile and surface shape according to the invention, exhibits excellent anti-glare properties (no reflection), and achieves high contrast -41 - 200809274 (38) degrees and good visibility. In addition, they cause less glare and less whitening. The samples of Comparative Examples 1 and 2 did not suffer from whitening because R (30) was less than 2%, R(40) was less than 0.003%, and R(60) /R(30) was less than 0.001. However, the average area of the Funo polygons of these samples exceeds ^ 1,500 μηη2, which will cause glare. As shown in Table 3, when the liquid crystal display device was assembled using the anti-glare polarizing film laminate produced by the comparative anti-glare polarizing film, the contrast ratios in Comparative Examples 1 and 2 were very high, respectively, 492. And 420, but the anti-glare property is not suitable and the visibility is low. For the samples of Examples 3, 4 and 5, R (40) exceeded 0.003% and R (60) / R (30) exceeded 0.001. Thus, they will become whiter than the sample according to the invention. In Comparative Examples 3, 4 and 5, the turbidity was high and thus the contrast tends to decrease. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing an example of an antiglare polarizing film laminate of the present invention. Figure 2 is a schematic perspective view showing the direction of incidence of light and the direction of reflection associated with the anti-glare layer. Figure 3 is a graph depicting the reflectance of reflected light associated with incident light at an angle of 30 degrees from the normal to the anti-glare layer of Figure 2, the angle of reflection (where the coordinate axis is represented by a logarithmic scale) example of. Fig. 4 is a perspective view showing the apex of the convex portion of the anti-glare film. ^ -42· 200809274 (39) Fig. 5 is a vortex diagram showing an example of the use of the apex of the convex portion of the anti-glare film as the mother's segmentation. The 6A to 6E diagrams are not used for the purpose. The step of a preferred method of making an antiglare layer. Fig. 7 is a cross-sectional view showing an anti-glare layer which is electrolessly plated after honing. Fig. 8 is a schematic cross-sectional view showing an example of a liquid crystal display according to the present invention. Fig. 9 is a cross-sectional view showing another example of the liquid crystal display according to the present invention. [Description of main component symbols] 1: Arbitrary angle R ( 3 0 ): reflectivity, R ( 4 0 ): reflectivity

R ( 6 0 ): reflectance • 1 〇: anti-glare polarizing film laminate H 11 : anti-glare layer 1 2 : transparent substrate film 13: ion-radiation-curable resin layer 1 5 : normal 1 6 : incident light 1 7: reflection direction 1 8 : reflected light direction 19 : plane -43- (40) 200809274 21 : metal plate 22 : honed surface 23 : hemispherical small concave portion 24 : nickel plated layer 26 : irregular surface 2 9 : flat plane

3 0 : linear polarizing film 3 5 : polarizing plate 40 : optical anisotropic layer 45 : optical anisotropic layer 5 0 : liquid crystal cell 5 1 : unit substrate 5 2 : unit substrate 5 4 : electrode 5 5 : electrode 57 : TN liquid crystal 60: Adhesive 70: Backlight 81: Any point 83: Base plane 84: Circle 8 5: Mother point 86: Polygon 87: Darkened Fino polygon - 44-

Claims (1)

200809274 (1) X. Patent application scope 1. An anti-glare polarizing film laminate comprising an anti-glare layer having a small irregularity on the surface, a linear polarizing film, and an optically anisotropic layer, which are laminated in this order Where the anti-glare layer has a turbidity of 5% or less for normal incident light, when using three optical frequencies consisting of dark lines and bright lines each having a width of 0·5 mm, 1.0 mm, and 2.0 mm The comb has a total reflection resolution of 50% or less at a reflection angle of 45 degrees at a light incident angle of 45 degrees, and an incident angle of 30% or less at an incident angle of 30 degrees. The reflectance R (30), the incident light entering the incident angle of 40 degrees has a reflectance R (40) at a reflection angle of 40% or less of 40 degrees, and R (2 60) versus R of 0.001 or less. a ratio of (30), where R ( 2 60 ) is the reflectance of incident light entering the incident angle of 30 degrees in any direction at a reflection angle of 60 degrees or more; the surface of the anti-glare layer is from 50 μm 2 to 1, 500 μπι2 averaging surface • a combination of polygons, where the polygons are surface irregularities as a parent point Then, the optically anisotropic layer has an optical axis which is optically negative or positively uniaxial and has an angle of 5 to 50 degrees from the normal direction of the layer. 2. The antiglare polarizing film laminate according to claim 1, wherein the polygon has an average area of 300 μm 2 to υ οο μιη 2, wherein the # S $ { is a convex portion of the surface irregularity as a mother point The apex is formed by the surface of the Fino division. 3. The anti-glare polarizing film laminate according to claim 1 of the patent scope, wherein the anti-glare layer is composed of a fine irregular resin film on the surface, the preparation of the resin film is -45-200809274 (2) Irregularities are formed on the honed metal plate by the impact of the fine particles, and nickel is electrolessly plated on the irregular surface of the metal plate to form a mold, and the surface of the mold is irregularly transferred to the surface of the transparent resin film. And removing the resin film from the mold. 4. The antiglare polarizing film laminate according to claim 3, wherein the transparent resin film comprises a UV curable resin or a thermoplastic resin. φ 5. The anti-glare polarizing film laminate according to the first aspect of the invention, wherein the optically anisotropic layer has an optical positive or negative optical uniaxiality. 6. A liquid crystal display comprising a liquid crystal cell comprising a pair of electrode substrates and twisted nematic liquid crystal sandwiched between the electrode substrates, and a polarizing plate disposed on both surfaces of the liquid crystal cell The polarizing plate disposed on the surface side of the display is composed of the anti-glare polarizing film laminate of any one of claims 1 to 4, and the anti-glare polarizing film laminate is placed to make the optical anisotropy The layer faces the liquid crystal cell. -46-