TW201213887A - Viewing-angle increasing film, liquid crystal display device and method for improving viewing angle - Google Patents

Abstract

The present invention provides a viewing-angle increasing film which has both a viewing angle improved effect capable of suppressing color changes and a suppression of the front brightness reduction with high level. The viewing-angle increasing film obtained by melt extrusion molding of a mixture of at least two kinds of mutually incompatible resins is characterized in that: the ratio (I30/I0*100) of transmittance (I0) at a mergence angle of 0 degree to transmittance (I30) at a mergence angle of 30 degree of light of a wavelength 440 nm in the main diffusion direction is 0.25 to 5.5%.

Description

201213887 VI. Description of the Invention: [Technical Field] The present invention relates to a field of view, a viewing angle enhancement thinning system, and a light emitting side of a liquid crystal display device or a human light, a liquid crystal display device The improvement of the viewing angle of the liquid crystal cell changes and the hue level of the positive viewing angle % coexist; and the suppression effect of the swaying, ya _ 凴 degree reduction is high ^ § 乂 乂 曰 曰 显 装置 装置 装置 装置 使用The film...the level of the vision has improved the viewing angle...the angle of production; Further, the present invention relates to a simple method in which a viewing angle raising film of an optical characteristic of the second embodiment is provided on a liquid crystal display with two:: cell = emission light side or human light side to solve the narrow field of view. A method of changing the viewing angle of a page in the presence of a liquid crystal display device. .--Page No Device [Prior Art] The liquid crystal display device is widely used as a flat panel display in the form of its thin, lightweight, and features as a mobile phone, mobile information terminal (PDA), personal television, etc. It is expanded year by year with display device. The computer power problem is the same as that of the CRT, and the liquid crystal display device has a narrow viewing angle. The Sf angle means that the angle of the liquid crystal display device ^ / i is increased, for example, the angle of the vertical line of the picture is increased. Into the phase of the age of T 1 □ 7], that is, 'face observation, with the direction of becoming more inclined, the written 彡 礼 礼 a negative - Luo phenomenon. Examples of the enamel include a color ratio, a brightness of a white display image, and a phenomenon of -η of a black display image. This is especially important. For example, the degree of the phenomenon in which the white color tone can be seen by the time is called the effect of the liquid crystal display in the field of the light-expanding layer provided on the field side of the effect of improving the viewing angle improvement effect, which is viewed by the diffusion film. The problem of the tendency of the noodles is difficult to achieve. Therefore, it is possible to display a large image of the low angle of change, the color tone change color shift angle improvement method, and the use of the scattered film crystal alignment or device. When the brightness of the transmission is below the brightness, the change in the hue of the white-blurred color image caused by the leak of the expected reflection is caused by the change in the hue of the white-blurred color image, and the change in the color of the image is observed. Yellow fixed. In the following, the color tone is changed to suppress the color shift degree as the liquid crystal cell of the visual field display device. This method can improve the effect without changing the liquid or the like, and the image can be emitted from the screen without increasing the number of steps or the like. Due to the scattering of the light, there is a decrease in the degree of surface reduction from the decrease in the degree of front and the blackening of the image. In other words, a viewing angle raising film which may reduce the effect of reducing the front side brightness is a film which has a function of scattering and transmitting incident light, for example, in Patent Document 1. In the film, a composition obtained by forming a transparent resin having a different refractive index is melted and extruded into a sheet shape, and the intensity distribution of the diffused transmitted light shown in FIGS. 3 and 4 of Patent Document 1 is obtained. (The following is also referred to as the variable angle light distribution 1 and the following points are suggested. Among them, the color is observed and the white is judged from the degree of tilting, and the effect is also known. The method of forming the liquid crystal. The quilt, that is, bright, which is called the positive degree reduction, has a full-field angle to improve the crystal display, and the light diffusing property is the film of the island knot by stretching the film. 201213887 Because the film direction diffusion of the third figure High, so the viewing angle improvement effect is excellent, but the front brightness reduction is large. On the other hand, since the film direction of Fig. 4 has a low degree of diffusion, it is possible to suppress the decrease in the positive intention, but the effect of improving the viewing angle is poor. The diffusibility of such light is different in the direction of the film, that is, the muddy film of the anisotropic diffusion film, as described later, because the reduction in the front luminance is subject to the diffusion of a large amount of diffusion, it is suggested in the present disclosure. The front brightness is greatly reduced. In other words, it is suggested whether or not the anisotropic direction of the light diffusing film is set in a direction, and whether the viewing angle improvement effect and the front luminance reduction can be suppressed. Further, the 'Patent Document 2' proposal proposes a bifurcation of an anisotropic scattering film having a different scattering angle of eight depending on the wavelength, and a difference in azimuth angle of 90 degrees with respect to the diaphragm surface. The two sides are different from the 'diffusion light distribution system. The variable-angle light distribution pattern of the film which is not shown in the third drawing (a) and (b) of the patent document 2 is because the film is on the left and the side of the right and the upper and lower sides," In the same manner, in Patent Document 1, the degree of diffusion is high, and the improvement effect of ν 野野角 is excellent, but the reduction in frontal brightness is large, and it is suggested that the effect of the viewing angle change σ and the reduction of the front luminance are not possible under the M ^ m. Moreover, Patent Document 3 The proposal reveals that the method of transmitting light-scattering control film contains a single thermoplastic resin, and the AW has a portion containing a fine hole in the right side of the circle. The variable angle light distribution of the film of the i-th image of the polycarbon literature 3 which is treated by the groove-like crack melting film, from the patent orientation and the α-=0, 180-degree orientation of any pattern α 90 Although the front brightness is reduced less and is good, the degree of diffusion is insufficient, and the result is insufficient. - 疋 implies the viewing angle enhancement effect 5. 201213887 Moreover, Patent Document 4 proposes a method of using a lens. From the eighth of Patent Document 4 The figure (left and right direction) and the 9th | direction are displayed The variable-angle light distribution pattern of the film has a high degree of diffusion in the left-right direction of the eighth film, and although the viewing angle is increased, the front surface brightness is greatly reduced. On the other hand, the vertical direction of Fig. 7 is oppositely The degree of diffusion is low, suggesting that the field of view effect is insufficient. The use of the anisotropic expansion time as described above, because the reduction in frontal brightness is due to the greater degree of diffusion, is not implied by the direction of use of the film. Further, Patent Document 5 proposes a transmission light-scattering film which is formed by forming a light-transmitting fluororesin on the surface of a base film. The angle shown in Fig. 2 of Patent Document 5 is shown. In the light distribution pattern, the degree of diffusion is insufficient, and although the front surface is small and good, it is suggested that the viewing angle improvement effect is insufficient. As described above, the use of the conventional light diffusion film to achieve the viewing angle, although the viewing angle improvement effect is satisfied Any one of the positive brightness is suppressed, but the current situation does not exist as a person with a high level of preference. [Prior Art Document] [Patent Document] [Patent Document 1] [Patent Document 3] Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. 5] Special opening 2〇〇3_27〇4〇9# The reason for the film (the thin film of the upper and lower images is good, the film angle is improved by the loose film, and the surface brightness control and the film are reduced. 201213887 SUMMARY OF THE INVENTION [Problems to be Solved by the Invention] The present invention provides a liquid crystal display device with a viewing angle of a liquid crystal display device, wherein the liquid crystal cell of the crystal display device has an emission height level and suppresses the image thereof. The brightness of the front side is lowered. Further, the object of the present invention is to improve the problem of the problem of the crystal display device. [Means for Solving the Problem] In order to achieve such a purpose, it has been found that the photo-diffusion film is melted at a high level and has a high degree of contrast, and the photo-lipid mixture is melt-molded to obtain a liquid crystal cell having a viewing angle of a specific optical characteristic. The liquid crystal display on the side of the emitted light or the narrow viewing angle of the person is completed based on the knowledge. That is, the present invention has (1) a mixture of a viewing angle-lifting film phase and a grain-like resin, characterized in that: in the main state, the prior art, the inventor lifts the film and uses the viewing angle to raise the wild angle. The lifting film is provided with a light-emitting or incident light side, and the viewing angle of the color change can be modified to provide a non-lifting light for solving the viewing angle of the liquid crystal display device with a narrow viewing angle, and the thinning is sufficient in the liquid. The liquid optical characteristic is controlled by the inventors to control the junction optical characteristics in a specific range, that is, the viewing angle improvement effect and the diffusion film are at least two. Further, the inventors of the present invention have found that the problem of the apparatus can be solved by a simple method in which the lift film is provided on the light-emitting side of the liquid crystal display. The present invention has the following configurations (1) to (24). 'The system will contain at least two kinds of fruit with a wavelength of 440 nm in the direction of diffusion of the field of view, which can suppress the planting tree to have a device that can solve the squeaking rh τ of the 30 degree angle of 201213887. The transmittance of fish π /τ 1 Λ (l30) to the exit angle Μ (the ratio of Μ (I3G / I 〇 x l 〇 0) is 〇 25~5 5%. (2) The angle of view of (1) The total light transmittance of the crucible is 79 to 95%. The mid-wavelength of the medium-wavelength of the light-wavelength of the medium-wavelength is increased by 5% from the g-direction of the main diffusing direction of the light of the wavelength 44. The half-value width of the pattern of the first distribution is 18 (4) as in any of (1) to (3), 14 is also anal > the moon is attached to the membrane 'the non-phase tree At least the type of moon-shaped polyolefin resin. A two-view angle-lifting film in which two kinds of non-compatible resins are polyolefin-based resins. In the corner-lifting film 1, the poly-smoke-based resin is selected from the group consisting of a resin, a polypropylene resin, and a cyclic poly-smoke resin, or (6) a viewing angle-increasing thinness H, which is thinner in the viewing angle and the most The surface area layer comprises a lipid-containing adhesion improving layer. (3) a polar-based polyolefin tree (the viewing angle-lifting film of any one of the corners, wherein at least one hard coat layer, a reflective layer, and an anti-glare layer are laminated on the surface of the viewer side of the film. The functional layer of the layer. ^ ^ (The S-th crystal display device is characterized in that: from the observer side of the liquid cell of the liquid crystal display device, the (1) wild angle lifting film is set. The two types of twin crystal display devices are characterized in that S is placed between the liquid cell and the light source of the liquid crystal display device, and S is set as a (1) wild angle lifting film. 'Items of any item 201213887 (11 If the liquid crystal display of (9) or (10) is displayed, the main diffusion direction of the viewing angle lifting film is set in the horizontal direction of the liquid crystal _ day 螨 装置 装置. (12) 如 (9) or (10) The liquid crystal display dream unit _ 1 衣 clothes, in which the main expansion side (4) of the viewing angle lifting thin plate is placed in the straight direction of the liquid crystal display device (4). (13) - The viewing angle of the seeding device has a backlight source , LCD cell, and set in the J electric eight-series Chinese Valentine's Day, Liu Yi ship - pumping sister fight%, night Any surface of the polarizer on both sides of the cell is disposed such as (=, placed on the dihedral angle of the liquid crystal cell to enhance the film. (1) to (7) in the field of view (14) such as (13) liquid crystal A method for improving the viewing angle characteristic of the display device, wherein the viewing angle enhances the main diffusion direction of the film. "1" goods 'the horizontal direction of the surface 〇5) as in (13) 'the improvement of the viewing angle characteristics of the liquid crystal display device The method, wherein the main diffusing and diffusing universal direction of the viewing angle lifting film is perpendicular to the vertical direction 〇牿:, the viewing angle of the liquid crystal display device of any one of items (13) to (15): On the viewing side of the viewing angle enhancement film used on the viewing side, the laminated ancient $, 丨, sa 踬 layer has at least one functional layer selected from the group consisting of a hard coat layer, a reflective layer and an anti-glare layer. (17) A liquid crystal display device characterized by using a viewing angle characteristic improving method according to any one of items 3) to (16). (518/-type polarizing plate is characterized in that it is laminated on a polarizer layer) (1) The viewing angle enhancement film of any of (7). A polarizing plate characterized in that at least one layer of a functional layer selected from the group consisting of a hard coat layer, a light-reducing layer and an anti-glare layer is laminated on the surface of the lift-up film of the polarizing plate of (18). 10-201213887 (20) A function of enhancing the viewing angle: in any of items (1) to (7), 'Jiangyan, which is characterized by a self-adhesive layer in the field of τ 1壬. One layer of the rising film ( 21) If (20) has a protective smectic amine with a rinsing function, the rb ώ 黏 adhesive layer contains a soft polymer. / , , , 中中(22) 如(20) or (21) A protective film having a self-adhesive layer in which the self-adhesive layer is included and a k-lifting work, J: a pressure-sensitive adhesive layer surface of the film, and a laminate having a viewing angle enhancement thinning as in any of items (1) to (7). As in (1) to (7) (23), as in any of (20) to (22), the canopy is glazed, and the bean is supported by the + film with the viewing angle enhancement function. The opposite side of the adhesive layer with the viewing angle is provided. The laminate has at least the functional layer of at least the :: film self-emissive layer and anti-glare layer.曰, self-coating, reduction (24) - a method of using a protective film having a viewing angle contact 弁At lift month b, characterized in that it will function as a function of (2〇) to (23) The protective film, the dream of knowing 1 L, eight is used to attach and detach the main film to the most surface of the liquid crystal display device. [Effects of the Invention] The viewing angle of the present invention is the same as that of the θ 敌 敌 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑 溥膑Light distribution pattern. Moreover, since the variable angle distribution pattern of the light emitted by the viewing angle 摇 鸰 amp & 升 Μ Μ is controlled according to the turbidity of the light, the length of the skin is controlled, by The liquid crystal display device of the liquid crystal display device can provide a high level of contrast between the light source side and the incident light side, thereby providing a high level of contrast between the viewing angle improvement effect and suppressing the reduction of the front brightness. Angle improvement effect and -11- 201213887 Liquid crystal display device that suppresses frontal brightness reduction. That is, by the following design: the light emitted from the film surface having a large positive brightness, the transmittance of the light having a wavelength of 550 nm is high, and the effect of the improvement of the wild angle is perpendicular to the film surface. The light emitted from the direction of the high angle has a high transmittance of light having a wavelength of 440 nm which is close to blue, and can have both the improvement of the viewing angle and the reduction of the front luminance. [Embodiment] (Basic Characteristics of Viewing Angle Lifting Film) The viewing angle lifting film of the present invention is obtained by melt-extruding and extruding a mixture of at least two mutually incompatible resins, characterized in that • relative to the instruction manual The method of measuring the main diffusion direction of the method of the dynasty, the earth, the sundial + the armor of the dynasty, the transmittance of the light at the exit angle (6), and the transmittance at the exit angle of 30 degrees ( The ratio of l3〇) (ΐ3〇/ι〇χΐ〇〇) is 〇25~5 (half-value width diffusivity). The invention of the field of view enhances the film == the wavelength of 44〇nm of the main expansion of the light... The width of the cow is preferably below U. When the half-value width exceeds 18 degrees, it is used in the improvement method of the liquid crystal, and the viewing angle of the liquid crystal display is obtained by the method of the liquid crystal display, and the front luminance is increased, and the effect of the positive τ j is expected. . ",, 16 degrees, and the upper limit is 14 without any particular limitation. The upper limit of the above-mentioned half-value wide sound is 3 degrees. Further, the lower limit of the aforementioned half-valued sore sputum is better, and 4 degrees is more preferable. -12- 201213887 The bulk system is evaluated using a half-value width (in the angle of the height of the variable angle distribution pattern). It is considered that the larger the half-value width is, the larger the width of the expanded 2 = '+ value is, and the diffusibility is poor. The above-mentioned half-value width can be measured by the method described in the examples, and is a diffusion standard widely used in the past. The following is also the case where the measured value is called the half-value width spread. However, when the half-value width diffusivity is used as an index, the diffusibility of the variable-angle light distribution pattern cannot be appropriately expressed. Is the variable-angle light distribution (4) suitable for the viewing angle of the rear W? Wenshan effect and suppression of frontal brightness reduction. As described above, it is known that a light-diffusing film can exhibit a viewing angle improvement effect. In fact, as shown in the figure, in the present invention, when a high-diffusion film having a half-value width of 57 degrees is used, the brightness when viewed from an oblique direction (high angle) can be improved, that is, the viewing angle can be improved. However, at the same time, the brightness of the front side is greatly reduced. Therefore, the improvement of the viewing angle and the reduction of the front brightness are contradictory. The angle dependence of the brightness of Fig. 1 was measured by the following method. [Method for Measuring Angle Dependence of Brightness] Measurement was carried out using RISA-COLOR/ONE-II (HI-LAND Co., Ltd.). A commercially available VA liquid crystal display device was horizontally placed on a sample stage, and a white image was displayed at a central portion of the panel at a size of 131 x 131 mm (Nokia monitor test for windows V l. 〇 (manufactured by Nokia Corporation)

Farbe mode) 'Drop 3 drops of water on the white image using a dropper, and place a light-diffusing film on it and make the water between the panel and the film spread evenly, and the CCD camera and the display are in a vertical state. The distance is set to lm, and the ccd -13 - 201213887 camera is at '7 相对 relative to the panel surface of the liquid crystal display device. To +70. When moving between the equators, the brightness is measured using the following conditions to obtain the outline of the angle dependence of the underside of the underarm. The blank measurement system does not adhere to the viewing angle. The f-angle is measured in the same manner as the above-mentioned white image, and the 25 parts of the center portion of the white portion are measured and expressed by the average value. °The brightness of all the pixels of the knife and therefore, in order to break the contradiction of the reduction of the field of view, the height of the water::: and the suppression of the frontal brightness diffusion degree are as described above, not as good as the two characteristics, the half value width and must be given It is about viscous, and B ° is in the lower range. The shell imparts a diffusibility to the effect of visualizing the viewing angle (preferably a variable angle distribution pattern). In order to solve the problem of the above-mentioned ambiguity, the inventors of the present invention have the effect of suppressing the reduction of the frontal brightness, improving the effect and the transmittance, and imparting appropriate diffusibility. The degree is the above range and the improvement = can be expressed by the diffusibility evaluated by the half value width expansion, and the transmittance of the end of the corner distribution pattern of the corner distribution pattern is evaluated by the transmittance of 3 degrees. Further, the diffusibility system can display the light distribution pattern of the preferred variable-angle light distribution pattern in order to satisfy the above-described optical example, which is represented by the two figures. The characteristics of the transmittance of the linear forward transmission and the diffusion transmission Θ are those of the good angle distribution pattern. Measured by the following method -14-201213887 [Measurement method of variable angle distribution pattern] The measurement was carried out using an automatic variable angle photometer (GP-200: manufactured by Murakami Color Research Co., Ltd.). Use the transmission measurement mode, the angle of incidence of light: 〇. (relative to the sample surface, up and down, left and right are right angles), light receiving angle: -90 ° ~ 90 ° (angle on the equator line), filter: use ND10, beam aperture: 10.5mm (VS-l 3.0), light-receiving aperture: 9.1 mm (VS-3 4.0) condition 'fixed to the sample 以' with the main diffusion direction as the horizontal direction and with a variable angle luminosity curve of the transmitted light relative to the full scale The setting of SENSITIVITY and HIGH VOLTON is adjusted in such a manner that the peak value is in the range of about 80% to obtain a variable angle luminosity curve of the transmitted light. (Terminal spread diffusing degree) The viewing angle lifting film used in the present invention is a transmittance of light having a wavelength of 440 nm at an exit angle of 3 in the main diffusion direction measured by the method described in the examples. 〇7~1〇 is better, 〇·8~9 is better's better than 10~8. The upper limit is preferably 7 or less, more preferably 6 or less, and most preferably 5 or less. ^The relative transmittance at a wavelength of 440 nm at an exit angle of 30 degrees, and the value of the diffusivity of the end of the light-converting light distribution pattern of the emitted light when the light is incident in the direction orthogonal to the film surface, this value The larger the end extension, that is, the angle at which the light is emitted to become a helium becomes larger. The following is called the end spread diffusion degree. At the end of the week, the extended diffusion degree is less than 〇. At 7 o'clock, it is not good because the lack of diffusivity causes the improvement of the wild angle. -15- 201213887 On the other hand, when the end spread diffusion is greater than 1 ,,

The effect of goodness is excessive, and it will become a bluish hue when viewed obliquely, but B is not good. Further, there is a case where the effect of suppressing the decrease in the front luminance is lowered, and the end spread spread degree is a new diffusibility evaluation standard which the inventors of the present invention have developed in the present invention. (Terminal spread diffusivity ratio) The above-described end spread spread degree for the viewing angle? The effect of Wenshan effect, but can not be said to have sufficient characteristics to break the contradiction between the viewing angle and the effect of suppressing the reduction of the frontal brightness. The non-browing phenomenon is combined with the two characteristics of Shangdu. In the above-mentioned preferred variable-angle light distribution pattern 1 /., 'heart rp'j, it is better to reduce the transmittance in a straight line. The transmittance of the material at the exit = enthalpy is preferably higher. Therefore, it is important to make the above two characteristics: at a high level, the ratio of the transmittance at the exit angle and the spread at the end is important. The ratio was found to be expressed by the ratio of the transmittance at the exit angle (Iso) to the transmittance at the exit angle (〇3〇/Ι〇χ100), and completed the present invention. That is, the transmittance of the light having a wavelength of 440 nm in the main diffusion direction of the method described in the embodiment is transmitted at an exit angle of 3 对 to the transmittance η /τ I at the exit angle of 0 degree (10). The ratio (Ι3〇/Ι〇χ1〇〇) is 〇·25~5.5% is important. The end-expansion diffusivity ratio is preferably from 0 30 to 45%, more preferably from 0.35 to 4.0, and particularly preferably from 0.35 to 3.5%. The above characteristics are hereinafter referred to as end spread diffusivity ratios. 201213887 By satisfying the above-described range, the end spread diffusion degree can be used to make the contradiction phenomenon of the above two special $' end spread diffusion degrees less than 〇·25% at a high level, and the front view is improved, but the improvement of the viewing angle is insufficient. When the ratio of the poor end spread ratio is more than 5.5%, it is not good because the front side is large. In addition, there is also a case where the correction of the color shift is performed in a blue-colored hue. For example, when the diffusion ratio is obtained from the graph described in the above-mentioned patent document, the high-diffusion side rate of the third graph (b) of the high-diffusion side 2 of Patent Document 1 and the high-diffusion side rate of Patent Document 4 are 88% each. 60% and 78%. Therefore, the above preferred end extension of the film as disclosed in the literature is said to be in a significantly low range. (Wavelength Dispersibility) It is important to focus on the wavelength "44 〇 nm" at the end spread diffusion degree or the end spread spread. If the characteristics of the front wild angle are low, the white is seen when viewed from the front, and it becomes yellow when viewed from a high angle. This is a means for visualizing the improvement of the viewing angle. Considering this change in hue, the blue light becomes more important at a high angle, and is focused on the wavelength of 440 nm. Therefore, the above-mentioned terminal spread diffusion degree or terminal expansion ratio can be a new characteristic value which is important for diffusibility and wavelength dispersion. That is, the optical design idea of the diffusing film viewing angle lifting film is different from the previously known diffusion film. That is, the brightness reduction system. On the contrary, the brightness reduction is excessive and the result is excessive, and the spread of the patent document is spread, and the degree of diffusion of the patent document is proportional to the ratio of the patented divergence ratio. The color of the so-called visual color, the inventor, etc. The spreading degree is combined with the factor and 'the invention 〇-17- 201213887 s month 'for the aforementioned half-value width diffusion' ...: 44 ° nm. As will be described later, as for the reduction in frontal brightness, it is less flammable, and the thickness of the half-width spread is small, so even if it is evaluated by using the length of 550 nm, i is 0 (anisotropic degree). The viewing angle enhancement film used in the present invention is preferably an anisotropic degree measured by a method of 5 or more, and is preferably 5.0 or more, more preferably 1 or more. When it is less than the above lower limit, the effect of imparting anisotropy is poor. On the other hand, although the upper limit is not limited, it is technically difficult to have '1 because the effect of imparting anisotropy is gradually less than 200. By satisfying the above range, it is possible to balance the visual field effect with the suppression of the front luminance reduction effect in a better direction. In the case of the film having high anisotropy, the effect of improving the viewing angle in the main diffusion direction, which is high in diffusibility, is large. Therefore, it is necessary to improve the direction of the viewing angle and change the direction of the viewing angle to enhance the film. In other words, in order to improve the left and right viewing angles of the liquid crystal display device, the main diffusion direction is flat with the left and right direction of the panel, and conversely, in order to increase the viewing angle in the vertical direction, the main diffusion direction is the vertical direction of the panel. By the correspondence in the parallel manner, there is also an advantage that it is possible to visualize only the visual improvement effect in the necessary direction. Change, also 5 5 Onm spoon wavelength [is not a good example. Falling, the direction of the saturation angle also depends on the set direction, which is Jiayejiao-18-201213887 (total light transmittance) The visual field of view of the heart enhances the oil Icc measured by the method in the manual. The total light of Λ & i 5 5 0 nm is preferably 79 to 95%, preferably 82 to 93%. The upper limit is preferably 92°/❶ or less, and more preferably 91% or less is 90% or less. The total light transmittance of δ 玄 is an index of the decrease in front luminance, which was measured by the method described in the examples. That is, the sample is fixed to the sample of the self-recording spectrophotometer in a horizontal manner. In the case of an isotropically diffused film, the total light transmittance is unchanged even if the thin direction is changed, but the light direction is diffused, that is, the anisotropic diffusion film, and the total rate is due to the fixed direction of the film during the measurement. And the reason for the change. The linear transmittance is measured by the light received by the integrating sphere, and it is considered that the film is changed in the direction in which it is fixed. However, the total light transmittance of the anisotropic diffusion film is greatly changed due to the fixing direction thereof. The main diffusion direction is, for example, a direction in which the light emitted from the laser marker is transmitted by the laser marker when the light is transmitted through the film is used as the main diffusion direction by the diffusion of the transmitted light when the light is transmitted through the film. Further, when the measurement is performed by fixing the main diffusion direction horizontally, the reason why the total light transmission 产生 causes the above phenomenon is estimated to be caused by the influence of the integrating sphere. It is more preferable that the diffused light which becomes the main diffusion direction is more excellent in the case where the fixed line of the film is transmitted in a specific light because the total light is not thinned by the main diffusion table of the present invention. ^ ^ (laser). That is, the mode rate of entering the extended direction is considered to reduce the position of the light-receiving portion of the blasting position of the light-emitting part -19-201213887, and it is considered that the direct incident light may be strongly received. In addition, the integrating sphere used in the measuring device used in the measuring method of the present invention described in the examples described later is the least likely to be directly incident because the light receiving portion is provided at the apex of the upper portion of the integrating sphere. The measured value of the influence of the light of the light-receiving part is assumed to reflect the value of the true total light transmittance. Therefore, the self-recording spectrophotometer (uv_3150; manufactured by Shimadzu Corporation) used in the measurement method described in the examples was used. It is important to carry out the measurement system with the integrating sphere attachment device (10)-pass; manufactured by Shimadzu Corporation. When the total light transmittance is less than 7 7 9 /〇, the decrease in the front side of the liquid crystal display device becomes large, and the decrease rate of the twist of the liquid crystal display device from the front side of the liquid crystal display device may become large. On the other hand, it is 95% strong, and the suppression effect of the reduction in frontal brightness is likely to be saturated. The inventors have found that the dominant bright light is dominant, that is, the parallel light causes the high front luminance and the viewing angle to be changed. Only the prior art, i.e., the haze ratio, is not satisfied. The degree reduction is dominated by the roughly linear front line transmission. However, it is known that the narrow range of the effect is the stipulation of the non-splitting parallel light penetration of the stipulations of the stipulations. Light transmittance 〇-20- 201213887 In the continuous display device, when viewed from the front, not only the light source from the normal direction of the film advances straight through the light of the diffusion film, but also the light from the source of the normal direction is diffused by the diffusion film. The curvature of the front side of the film in the direction of the normal direction of the film should observe the sum of the light rays. It is considered that the total light transmittance of the present invention is close to the actual observation state without significantly biasing the light in a specific direction. . Further, it is considered that the wavelength of the 550 nm is important for the eyes of a human body, and the spectrally high spectral efficiency near the wavelength of 550 nm is considered to be significantly affected by this situation. The degree of reduction in frontal brightness of the present invention is not limited, and the effect of improving the viewing angle by the allowable range of reduction in frontal brightness is not changed from the structure of the entire system of the liquid crystal display device such as the increase in the degree of shelling of the device. When the brightness when the viewing angle raising film is not provided is set to 1%, the rate of decrease in brightness when the viewing angle raising film is provided is expressed by %, and the rate of decrease in brightness (hereinafter, the front side including the front brightness reduction rate) The sentence system-) with a reduced brightness is preferably 2 G% or less, and 18% or less: preferably, more preferably 15% or less.乂 In addition, although the absolute brightness is different depending on the type or type of the panel, when the front brightness is lowered, it is considered that the panel type and type change are substantially constant. The above positive luminance is reduced to a preferred range by satisfying the aforementioned total light transmittance. Surface (acting mechanism) When the front side is sacrificed, it is known that the light-diffusing film can be used to visualize the field of view. Indeed, as described above, it is possible to improve the bright yield when using the + value width method diffusedness of the public ash 201213887 to evaluate & ^ ^ >< 咼 diffusive film and oblique (high angle) inspection The handle is one m, but at the same time, the brightness of the front is low in the middle of the field. Therefore, it is a contradiction between the so-called visual work and the angle improvement effect and the reduction of the frontal brightness. Musk is the most difficult. In order to break the viewing angle improvement, the (4) and the front luminance shown in the second figure are reduced, and the #±^ text distribution pattern is important. Even if the end of the expansion spread ratio is too 媳 媳 姑 &&& By extending the diffusivity ratio to the end food, special @ 宕 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is enough to pay balance. It is speculated that zinc -3⁄4 # ^ ^ 9 is enough to break the contradiction between the front brightness and the k-liter of the same viewing angle to the viewing angle. ‘, both have the frontal brightness and height of the horse, and the transmission of the viewing angle is thin and also respected. The wavelength dispersion of the P 犋 射 7 7 7 7 7 7 7 , , , , , , , 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 The important 'estimation of the degree is that the multiplication effect of these important factors is to achieve both the viewing angle improvement effect and the front brightness. The part of each of the above-mentioned important factors, although not prior art, is important, but by satisfying all of the above-mentioned important action mechanisms at the same time, the present invention can be broken by the view, rt > ? A light-diffusing film with a contradiction between the effect of Wenshan and the reduction in frontal pockets. By increasing the degree of anisotropy, although it can be more comprehensive, WΊ City speaks wild. The effect and the effect of suppressing the positive effect P. Which heat is unknown 4 'It is estimated that by increasing the anisotropy, it is helpful to emit light in the direction of the specific -22- § 201213887, and the effect of the viewing angle is improved and the front brightness is lowered. It is caused by a difference in the contribution of the concentrating effect. (The range of the front-side brightness reduction of the present invention is not limited to the structure of the entire system of the liquid crystal display device such as the brightness enhancement of the backlight device, and the viewing angle improvement effect is obtained in the allowable range in which the front luminance is lowered. In the case where the brightness when the viewing angle enhancement film is not provided is set to 1 〇〇%%, the reduction rate of the brightness when the viewing angle raising film is placed is expressed by % (hereinafter, the brightness reduction rate is included) The statement that the front brightness reduction rate of the front brightness reduction rate is uniform is preferably 20% or less, 18% or less, and more preferably 15% or less. Further, although the front luminance is different depending on the mode or type of the panel, when the front luminance is lowered, it is confirmed that the panel type or the type of the panel is substantially constant. The above-described front luminance can be lowered to a preferable range by satisfying the above-described total light transmittance. (Scope of preferable viewing angle improvement effect) The viewing angle improvement effect of the present invention was evaluated by the method described in the examples. That is, on the panel of a commercially available liquid crystal display device, the white image is projected and the CCD camera is moved over the equator, and the angle dependence of the x value of the Yxy system of the CIE color system is measured to determine the relative: the vertical line is 0. The X value at time (10)) and the X value at 7〇 (x7〇s). On the other hand, the value of ^(70 degrees) = x7 〇s_x7 〇 b) was calculated by taking the X value U7 〇 B) of the panel itself without providing the viewing angle enhancement film sample, and the evaluation was performed. Hereinafter, this Δ X (7 〇 degree) is referred to as a color shift degree. Usually the liquid crystal display -23- 201213887 panel of the device, the color offset is positive. The value of y also approximates the value of x because the displacement is greenish yellow. Since both the X value and the y value are 曰+, the result becomes a behavior similar to the band and the y value. Therefore, in the invention, the X value is taken as a representative value.胄 Therefore, the current color shift degree is shifted to the positive side, so that the mode or type of the panel can be made without: the color offset degree of the Guanghai color is -0.006~-0 02 "When the column is in the VA mode It is better to use -0.008~-0.018 for better. When it is greater than - 0.006, the value of the multi-value child is reduced. "The foot angle improves the visual angle of the household * ancient, on the contrary, less than -〇.02, because the color The bias is too far, and the viewing angle is changed to a white image of M ^ (2), so that the 豕 from the oblique observation becomes a blue hue, which is not good. (Structure of the viewing angle lifting film) Non-phase! A bright light-diffusing film can be obtained by "melt-extruding at least two mutually incompatible thermoplastic resins" at least one another. A mutually incompatible enthalpy is as long as it satisfies the above-mentioned Optical; sexual t "the existence of the form ^ Α ' Φ , Temple 迮 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The structure of the sea/island in the two trees I is a continuous phase. It is possible to use the above-mentioned characteristics of the light or the refracting or scattering of the light to control the characteristics of the above-mentioned thermoplastic resin propylene-based resin, polybutene-based resin, and pentylene resin, etc. Ethylene resin, poly% polystyrene resin, polymethylammonium, t@-type resin, propylene glycol--24-201213887 resin, polystyrene, and the like. In the present invention, the fine particles of the optical properties of the additives of the respective resin agents 4 and the absorbents are improved. It is preferable that the ratio of the thermoplastic resin ί 5/95 to 95/5 from the heat (not mutually dissolved) is preferable, and the layer structure described later is preferable. In addition, the two mutually exclusive parties are close to each other and must be considered in accordance with the ratio. The resin is a resin which can be made more compatible with the resin, the polycarbonate resin, and the copolymerization, and the resin can be used in advance by a premixing method. It is also possible to mix three or more kinds of thermoplastic resins, and it is compatible with each other and is adjusted by a compatibilizing agent or a dispersion diameter. Further, an antioxidant, an ultraviolet ray or an antistatic agent may be formulated. Further, it is preferable to add at least two types of mutually incompatible resins, as long as the plastic resin such as inorganic particles or polymer particles is added without hindering the upper periphery. The above-mentioned at least two mutually incompatible) compounding ratios can be said to be the respective mass ratios of 10/90 to 90/10, preferably 20/80 to 80/20, and as described later, to consider the kind of the resin component. The thickness of the light-diffusing layer, the production method, and the like are set such that the blending ratio of the non-compatible thermoplastic resin tends to be higher than that of the continuous phase. In particular, in the case where the melt flow rate is reversed, the composition of the sea-island structure is reversed. It is preferably selected from general-purpose general-purpose resins, and it is also possible to use special ordering products for site production. 201213887 In addition to the above-mentioned optical properties and excellent mechanical properties or thermal properties other than optical properties, the polyester resin is made of polyethylene terephthalate, polybutylene terephthalate, and polynaphthalene. A single polymer and/or copolymer of ethylene glycol diester or polybutylene naphthalate is preferred, and is also economically superior. The resin to be combined with the polyester resin is preferably a polyolefin-based resin to be described later. In addition, the fluorine-based resin is not limited as long as it satisfies the above characteristics, and it is easy to achieve the optical characteristics described above, and it is economically advantageous, and a fluorine-containing polymer such as a vinylidene resin or a perfluoroethylene is used together with ethylene or A copolymer of an olefin monomer such as propylene is preferred. The gas resin is excellent in light resistance. For example, by combining with a polyolefin resin, an anisotropic diffusion film excellent in light resistance can be obtained. The resin to be combined with the fluorine-based resin is preferably a polyolefin-based resin to be described later. It is preferable to make the former polyolefin-based resin stable. Examples of the polyolefin-based resin, polypentene, polyhexene, and cyclic polyacetone. In the case of the characteristic display, the type includes the use of at least 1 'polyethylene-polypropylene, polybutylene methylene, or the like, or the copolymer's light resistance or economy. When there is no special type of polyfluorene-based resin, the range of fine = 〇. -7 is preferably 0. 〇5~〇〇6 of the van: M 0.01~〇.05 is better. By taking the difference in refractive index as 201213887, the optical characteristics of the aforementioned viewing angle can be obtained more stably. For example, when the refractive index difference is more than 0.07, for example, the total light transmittance may be lowered to satisfy the aforementioned characteristics. That is, the larger the refractive index difference is, the larger the angle change at the interface of the two incompatible thermoplastic resins becomes, although the action is favorably acted upon for the diffusion system, but in addition, the reflection coefficient at the interface is exponentially increased. For the sake of it. Therefore, in the above range, the various optical characteristics described above can be easily satisfied at the same time. Examples of the cyclic polyolefin-based resin include those having a polyolefin structure such as norbornene or tetracyclododecene. For example, ("the ring-opening (co)polymer of the norbornene-based monomer is hydrogenated by adding a cyclopentadienic acid and adding cyclopentadiene as necessary, and then hydrogenating it. (2) a resin obtained by addition polymerization of a norbornene-based monomer; (3) addition-copolymerization of an olefin-based monomer such as ethylene or an α-olefin by an ethylene-reduced monomer; The resin and the hydrogenation method can be carried out by a usual method. It is considered that these systems can increase the glass transition temperature, and are finely divided by sharing or drafting in a mold. The island component is rapidly solidified during cooling and is easy to obtain stable properties. The glass transition temperature is preferably 100 ° C or more, and more preferably 11 〇 ° c or more. The upper limit is determined according to the type of the monomer (Tg of 100% of the cyclic monomer), preferably 23 (more preferably rc or less, and particularly preferably 190 ° C or less. When the upper limit is exceeded, the melting is performed. It must be heated at the time of extrusion to produce a colored or undissolved material. Again, depreciation -27- 201213887 It is based on ISO 11357-1, -2, and -3, and the value measured by the temperature-increasing yield of 〇/min. The content of & is, in particular, the ring shape of the cyclic polyolefin resin. The component is preferably 70 to 90% by mass, and more preferably 7 to 85% by mass, more preferably in the range of the olefinic system. In particular, the cyclic polyolefin resin which copolymerizes ethylene is obtained. The affinity with the polyethylene resin is high, and the content of the product is preferably 3 (M〇% by mass is preferably 27% by mass%). The copolymer is preferably 卩 5 〇 m 〇 1% or more of the ethylene component. The density of the baking resin or the polymerization method is not limited, and a copolymer of milax or lower is preferably used. The rarity of this polymerization:.,: The polymerization reaction is a combination of a metallocene catalyst method and a non-metallocene catalyst method. In particular, it is preferable to be able to stably impart high diffusivity to the olefinic copolymer of olefin and octene. For example, as the resin, 1NFUSE (TM) manufactured by Seiko Co., Ltd. has a crystalline portion due to the structure of the , Μ = It is preferable that the characteristic of the melting point m is sufficient to increase the heat of the second question. The wild type h is a polypropylene resin, which may be a polymer. The copolymer may be 1% or more as long as the substance is OK. It is a method of producing a co-fat, a molecular weight, etc.: It is preferable that the two components are preferable. In the case of the tree, it is preferable that the crystallinity is high. The specificity is the melting of the thermal scanning and the like (DSC): It is preferable to use 65J/g or more. The heat of fusion is 201213887. The polyolefin resin contained in ethylene and/or butene is exemplified by the homopolyethylene tree and the homopolymer. a butene resin, a copolymer with an olefin monomer other than the resins, a copolymer of acrylic acid or mercaptoacrylic acid, and the like, and the like. When it is a copolymer with other olefin type monomers, it can be any of random, a desired copolymer, and a copolymer. Also, dispersions such as rubber may be used. The method for producing the resin, the molecular weight and the like are also not particularly limited. For example, it is preferred to use the above polyethylene-based: fat: copolymer of ethylene and butadiene. The nanocrystalline structure-controlled polyolefin-based elastomer resin is a polyolefin-based elastomer capable of controlling a crystalline/amorphous structure of a polymer at a nanometer scale and having a network structure of nanometers, for example, N0TI0 (registered trademark) manufactured by Mitsui Chemicals Co., Ltd. can be cited. The crystal structure-controlled polyolefin-based elastomer resin has a feature that the crystal size can be controlled at a nanometer level with respect to the crystal size of the prior polyolefin-based elastomer resin. Therefore, most of the conventional polyolefin-based elastomer resin is excellent in transparency, heat resistance, flexibility, rubber elastomer, and the like. Therefore, by blending the nanocrystalline structure-controlled polyolefin-based elastomer resin, it is possible to enhance the obtained film. The melt flow rate of the above-mentioned > two mutually incompatible thermoplastic resins is not particularly limited as long as the above optical characteristics are satisfied. The respective thermoplastic resins have a melt flow rate of 0.1 to 100 as measured using 23 〇tK, and are suitably selected in the range of 0.2 to 50. The melt flow rate of the above resin can be appropriately selected in consideration of the composition and composition ratio of the resin, which resin is used as the sea component, and the required optical characteristics. -29- 201213887 The pointer has a larger composition ratio and one of the solution flow rates is a sea component. At the same amount, the melt flow rate is high and it is easy to become a sea component. The case where the melt flow rate of the higher composition ratio is higher is not a simple sea/island structure, for example, a case where a continuous phase is formed. In the present invention, as described above, anisotropy is imparted to the degree of diffusion. It is preferable to impart this property to the island structure with anisotropy. In order to form the island structure of such a shape, it is preferable to add a difference in the viscosity of the sea component resin and the island component resin. In particular, compared to the sea component, it is better to reduce the viscous viscosity of the knife. Therefore, for example, it is preferable to use a difference in the flow of the additional solution, and it is preferable to increase the melt flow of the island component as compared with the sea component. Further, it is preferable to add rigidity between the sea component resin and the island component resin. In particular, compared with the sea component, in order to reduce the rigidity of the island component, and the flow rate of the island component is low, the force of thinning the island component by the distribution and drawing in the mold is difficult to produce, resulting in various directions. The opposite sex is low. The tendency for the mass ratio to deviate from 50/50 is stronger. In the case where the two types of resin which are used for each characteristic are considered to be polyolefin-based resins, the film having the above characteristics can be obtained, or the economy can be obtained by using a cyclic polyene tree and a vinyl group. A combination of a resin or a polypropylene resin, or a combination thereof is preferred. When the cyclic polyolefin resin is combined with a polyethylene resin or a polypropylene resin, a polyethylene resin or a polypropylene resin is used as the sea phase, and the cyclic polyolefin resin is compared with the island phase. The difference between the speed of the refining and low islands formed by the lower part of the fusion system is better, and this is the whole. It is easy to be a hydrocarbon system. The eucalyptus resin body flow -30- 201213887 is preferable, and the molten metal of the polyethylene-based resin or the polypropylene-based resin has a high melt flow rate. In the case of a combination of a cyclic polyfluorene (tetra) resin and a polyethylene-based resin or a polypropylene-based resin, the cyclic polyolefin-based resin is blended in an amount of 10 to 60% by mass based on the total amount of the resin. /. Preferably, it is preferably 1〇~5〇% by mass. The above range is preferable in the case of realizing a preferred embodiment in which a polyethylene resin and a polypropylene resin are used as the sea phase described later. The structure opposite to the above-described structure, that is, the cyclic polyolefin-based resin is used as the sea phase, and it is difficult to obtain desired optical characteristics in terms of flexibility and fluidity of the m-phase in the mold. In particular, it is difficult to obtain an anisotropic effect. High visibility viewing angle lifting film. According to the above embodiment, even if the film forming apparatus is changed, the effect of obtaining a light-diffusing film having desired optical characteristics can be obtained stably. Although the reason is not clear, even if the film formation is changed, the distribution or the like is changed due to the difference in extrusion conditions or the shape of the mold, and it is presumed that the resin of the sea phase is softer than the island resin. It is still liquid and can mitigate its effects. The size of the island phase in the case where both of the polyolefin resins are contained is not particularly limited, and the average size of the short diameter obtained by the laser scattering method is preferably 〇1 to 2/zm, which is less than Insufficient diffusion is not good. Conversely, greater than 2//m, the degree of backscattering increases 'the total light transmittance is low, which is not good. (Continuously, the layer of the improved layer) The viewing angle-lifting film of the present invention is provided on at least one side of a light-diffusing layer mainly comprising two kinds of mutually different polyolefin-based resins, and a modified layer of the main -31-201213887 resin. It is better for the most surface-dispersed film. The wild angle lifting film is used to lift the thinner corners of other members. The water-based polarizing plate is used for the liquid crystal display. The polyolefin resin is preferably contained in the group consisting of ethylene, methylpentene and cyclic olefin. The monomeric polymer of the monomer is used. The base-based polyolefin resin is based on. Examples of the polar group include an acid-reducing agent, a glycidyl group, an isocyanate group, an ester group, a test group, a metal sulphate base group, a ternary amine salt group, or a 4-stage one, and may also contain Two or more layers of the optical system including a polar group-containing polyolefin system can be laminated to enhance the adhesion, for example, the adhesive agent can be attached to the liquid crystal cell assembly group viewing angle. Lifting film transformation (subsequent improvement layer) The monomer containing at least one of a polar group, propylene, butene, hexene, and octene of the present invention may be one or more monomers of the above type. The copolymer also contains, in the present invention, a polar group having a minimum of one type, a sulfonic acid group, a phosphonic acid group, a hydroxylamine group, a quinone imine group, an oxazoline group, a phthalate group, a phosphine. Acid gold amine base. The type of the polar group which can be a polar group can be appropriately selected depending on the composition of the polyolefin resin constituting the light diffusion layer, the type of the member to be adhered to, the necessary adhesion, and the like. Implementation. Further, in the polar group-containing polyolefin resin of the present invention, the polar group may be directly introduced into the polymer chain of the polyolefin resin, and may be introduced into another resin and added or mixed. Further, according to the method of manufacturing a viewing angle film of the present invention, 201213887, the polyolefin resin of the present invention can also be used, for example, to introduce a carboxylic acid group or a hydroxyl group to the terminal or the inside of the bond. Modified by the reaction of the compound. In the present invention, the polyolefin resin containing the above-mentioned polar group may be used singly or in combination of two or more kinds of blending compositions, or may be prepared by blending a polyolefin resin containing no polar group or a resin thereof. Formulation of the composition. In the case of the composition, the polyolefin resin containing the above-mentioned polar group of the extremely steep base-containing polyolefin resin is 10 mass%. The above is preferable, and it is more preferably 30% by mass or more. The above-mentioned improved layer may be any one of an area layer and a two-area layer, and the total thickness is not limited, and it is preferably 10 to 500 〆m, and the composition ratio is not limited to 'the thickness of the adhesion layer is 2 ~100# m is better. The thickness of the light-diffusing layer/subsequent modified layer is preferably 0/1 to 3/1, more preferably 1 〇/1 to 4/1. As a result, the viewing angle effect and the adhesion improving effect can be balanced. (The method for producing the sinite angle lifting film is not particularly limited as long as it is not described, but the method of forming the film by melt extrusion molding is used. Preferably, in the present invention, in order to impart light diffusibility, since it is not necessary to melt the fine particles, the melt extrusion molding method is used, and the stepwise molten resin is clogged in the orifice of the transition device, and at the same time, the obtained film is obtained. The superiority of the clarity is also high. 3 As the above-mentioned film-forming method, such as the melt-extrusion method, the molecule can be used as a counter-material, and the thickness of the film is increased to meet the requirements. For example, it may be that the melted resin is not melted. The melted resin is preferably cooled from the inlet portion of the portion which is generally widely anisotropic. In the case of this product, that is, the pressure at the time of the adhesion is lightly pressed, so that the gas method and/or the electrostatic seal 4 can be used as long as it is used. By this method, the film is lifted. In the above-described method of using the gas or the electrostatic adhesion method, for example, a film which is attracted by a gas pressure nozzle using an air gas or the like can be used as a film which can be stretched by any of the T sub-die method and the blow molding method. It is also possible to carry out the stretching treatment molding method, and usually, the extrusion head of the extrusion molding machine is extruded into a sheet shape, and the sheet is cooled and solidified to form a film. In the case of the adhesion of the chill roll, it is also carried out by pressing with a pressing roller, but it is applied so that it is not in the dense effusion zone when the chill roll is closed (also called a temporary storage area (bank). In the case of the liquid zone, the formation of the liquid zone is preferably produced when the pressure roller is pressed against the strong pressure of the pressure-bonding pressure to reduce the density. For example, the method of pushing and lowering is generally widely used. The method of avoiding the weak pressure is not particularly limited to the method in which the resin melted by the extruder is extruded from the die into a thin pressure to press the sheet and/or the suction bow is used. It is good to cool and solidify the film to make it safe to obtain an anisotropic viewing angle.

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The method of suppressing the body pressure is exemplified by a vacuum chamber method in which air pressure is applied, that is, air to a knife, and the like, and a vacuum chamber method in which a pressure is reduced is used; The method can be used alone or in combination with the method of -34-201213887. In order to improve the thickness accuracy of the obtained film, the latter is used to carry out the preferred embodiment. The viewing angle-lifting film of the present invention can be produced by any one of the non-extension method and the stretching method. For example, in the case of a polyester resin for a light diffusion layer, it is preferred to carry out uniaxial stretching. The stretching ratio is preferably 2 times or more. ^艮 is not limited, preferably less than 1〇. In response to this, the island phase (stretching: a structure that is stretched and has a slender structure, and the alignment with the island: the light diffusing system in the positive direction is remarkably enhanced, and the directions, the south, and the south are diffused. When the J-sheet is cooled and solidified by the non-extension method, the elongation is 9 before the film is produced. The 'view angle of the present invention is a multilayer structure of two or more layers, and the light is expanded by the above structure. Only the structure of the light diffusion layer which does not have light diffusibility is 0. In the above multilayer structure, it is possible to use the extrusion layering method or the dry type at least two kinds of mutually non-phases, and the respective 孰*»», plastic resin Preferably, it can also be used in advance by the kneading method. The viewing angle of the present invention can also be used in a method in which the melted extrusion is long, that is, the use of the elevated film can be a single layer. When the layer is constructed, at least one layer of the film is dispersed, and the other layer In addition, all layers may be produced by a multilayer co-extrusion method, and may be carried out by a lamination method. The mixture of the soluble thermoplastic resin is blended with an extruder such as a film forming step to form a mixture in advance. The thickness of the right to open / find the waist, can be said to be 10 ~ 500 / zm is better, with an . ^ 20 ~ 500 " m is better, to 2 〇 ~ 2 〇〇 / / m - 35 - change = The method is characterized in that at least the light-emitting side or the incident light side of the backlight unit cell is provided on at least the respective emitted light side or incident light side of the emitted light. Therefore, the method of the present invention can be improved without increasing the number of steps. Moreover, because the device is very economical and is applied to the surface of the liquid produced by the usual method, the above-mentioned viewing angle can be set on the polarizing film of the viewing side of the liquid crystal cell, and the film is lifted by the viewing angle. Further, the liquid crystal cell of the thin film liquid crystal display device can be lifted at the viewing angle of the liquid crystal cell on the outermost surface of the incident light side of the liquid crystal. The thin film and the thin release make PVA and the like dyed with iodine or dichroic 201213887. It is better to change the thickness of the film by the method of manufacturing and manufacturing the light diffusion layer. Moreover, when adjusting the thickness, the width of the lip, etc. Adjustment by change (viewing angle characteristic improving method) The viewing angle characteristic light source of the present invention, the liquid crystal cell, the liquid crystal display provided on the liquid polarizer, and the polarizing plate on the light side or the incident light side are placed on the viewing angle raising film. The display device manufacturing step can be applied to all liquid crystal display chapters. Therefore, the film of the liquid crystal cell of the crystal display device can also be used in the liquid crystal cell viewing angle lifting film used in the liquid crystal display device, and also in the polarizing film. The polarizer sheet of the present invention is not limited as it is laminated so that the viewing angle is the incident light side. For example, the type of the resin component, the blending ratio, and the thickness of the layer structure are thin, and the optical characteristics are large by the draw ratio and the extrusion flow rate of -36 to 201213887. Further, it may be a polarizer monomer and a composite of protective films. For example, it is also possible to assemble a liquid crystal and a (four) aspect by laminating a polarizer of a liquid crystal cell in the present invention (the viewing angle enhancing film and the partial product in the present invention, as described above, the field of view: using an adhesive). The structure of the laminated body is not particularly one of the best angle-increasing film and the polarized light = fast field of view. Q is a better embodiment of the film and eccentricity is as good as possible and transparent, but also in the case of those who have the ingredients and ingredients; copolymer, shouting as crotonic acid; The following agent is not particularly limited as long as it is transparent and has a small increase in the viewing angle. "For example, the two sides of the plate have an adhesive property." For example, it is possible to improve the cross-linking property by heat or an active line of uv $ or the like. a monomer having an affinity between the film and the polarizing plate, an oligomer, and a ligand of the polymer and the crosslinking agent. Further, the molecules of the transparent monomer, the oligomer, and the polymer are The method causes the functional group of the crosslinking reaction or the ligand of the crosslinking agent. Since the polarizing plate is mostly composed of a PVA-based polymer as the main component, the above-mentioned adhesive agent preferably contains a PVA-based polymer. Polyvinyl alcohol obtained by saponification of vinyl acetate; further examples thereof include saponified products of vinyl acetate and a copolymerizable monomer; acetalization of polyvinyl alcohol, acetalization and grafting of urethane Modified polyphosphate The monomer may be an unsaturated citric acid such as maleic acid (anhydride), trans-succinic acid, itaconic acid or (meth)acrylic acid, and its propylene, propylene, etc. Α-olefin, (meth)acrylic acid sulfonic acid (sodium test), -37, propylene sulfonamide disulfonate, 'N·vinyl group can be used only 1 4 beta system is not 201213887 base (monoalkyl cis-butene) Ethylene dicarboxylate), N-hydroxydecyl acrylamide, salt test, N-vinyl pyrrolidine _. The PVA 糸 polymer of these polyvinyl alcohol-based resins is preferably used as the PVA-based polymer. In the case of water-soluble or water-dispersible, it is preferable to have cross-linking property, and it is particularly limited, and the stability of the acid-based, carbodiimide-based, and oxazoline-based coating liquids may be mentioned. For the sake of ' ^ qi acid S, the second charcoal: the anodic and imine oxime, oxazoline linkages are preferably polyethylene glycol melamine compounds. Also in order to promote cross-linking reactions It is preferable to assemble the above-mentioned polarizer and laminate it with the liquid crystal display device depending on the mode of the liquid crystal display device. Protective film for viewing angle enhancement function) In the present invention, since the self-adhesive layer is adhered to the viewing angle, the obtained laminated system is adhered to the viewing angle of the liquid crystal display device of the liquid crystal cell of the liquid crystal display device, and can also be mounted. Protective function of surface contamination or injury. Alkali alkyl cis-butylene acrylamide sulfonyl sulfonate. It can be used in combination with two kinds of ketone derivatives, such as 60~8 5%. In the case of a melamine-based or isocyanato-based compound, a melamine-based or a hetero-compound may be used as the compound, and the compound may be appropriately displayed as necessary. If the one-layer layer of the swell of the absorption axis of the sheet is detachable, it is possible to improve not only the liquid crystal display but also the detachment from the -38-201213887, for example, the visibility of the film in the viewing angle is deteriorated. Etc., can be used as one of the implementations of the viewing angle enhancement function. The self-adhesive layer may be formed, or may be formed when the thin film of the other substrate layer and the viewing angle are thinned to form a self-adhesive layer by including the two-sided adhesive layer and the corner-lifting film, so that both sides are self-adhesive layers. Moreover, it is preferable to improve the film 'but it can be strong or economical, and it is preferable to adhere the layer on one side and the pressure-sensitive adhesive layer side. The surface is contaminated or injured to renew the new object. That is, since the protective film of ruthenium is used, it is preferable that the surface of the film having a good viewing angle is increased to form a surface of the film directly to laminate the film. In particular, the latter method is preferably a two-sided adhesive film adhered to the wilderness. The method of forming a viewing angle lifting film by fixing the viewing angle of the self-adhesive layer on the two sides of the self-adhesive layer, for example, forming an acrylic-based adhesive viewing angle lifting film, using the two-sided adhesive film to manufacture a viewing angle enhancement function When the film is protected, the type and manufacturing method of the kneading film are not particularly limited 'because the self-adhesive layer has excellent self-adhesive properties and excellent cost performance, 'for example, by using the method disclosed in (4) 2009_73937胄: The film is preferred. Further, in terms of homogeneity and the like, for example, it is preferable to directly combine the amorphous polyolefin film-based resin layer which is not disclosed in JP-A-2009-299021 与a, and the above-mentioned viewing angle increase thin m. . The above composite method is not limited. For example, a coextrusion method or an extrusion lamination method can be mentioned. (Self-adhesive layer) The self-adhesive layer of the present invention means a property that can adhere even when pressure is applied to the surface to be adhered without applying pressure from the outside. -39- 201213887 More specifically, as long as it is capable of multiple times of adhesion and repeated peeling, it is not limited, and in the case of a soft polymer, even if it is pasted and repeatedly peeled, 'because its adhesive property or peeling property changes little and peels off. It is preferable that the composition of the adhesive layer is not likely to be transferred to the surface of the display screen to contaminate the display screen. Preferably, the soft polymer may be a non-crosslinked polymer, and the crosslinked polymer may also be used. Further, it may be a gel. The type of polymer is not limited. For example, a polyolefin polymer, an acrylic polymer, a polyester polymer, a polyurethane polymer, a polyoxymethylene polymer, or the like can be given. Since the above characteristics are more excellent, it is preferred that the polyolefin-based polymer and the polyolefin-based polymer are combined with other polymers and a polyoxymethylene-based polymer. The type of the polyglycol polymer or the crosslinking method is also not limited, and for example, the method disclosed in JP-A-2009-H3420 is preferred. Further, an additional type of polyoxyloxy polymer is preferred. The self-adhesive layer containing the soft polymer described above is a surface dynamic hardness evaluated by the following measurement method, preferably 〇〇1 to 1〇〇mN///m2, and 〇_〇3 to 80 mN/ // m2. For better. When the surface layer dynamic hardness is less than 0 '01 mN//zm 2 , the peeling becomes difficult to cause the above-described restorability to be lowered, and conversely, when it is larger than 1 〇〇 mN//zm: the fixing force is insufficient. [Surface dynamic hardness] The Shimadzu dynamic ultra-fine hardness tester _202 type manufactured by Shimadzu Corporation was used, and the test mode: mode 3 (soft material test), indenter type: 115, test load: i.97 mN, load speed 0.0142 mN/ 201213887 seconds 'Retention time: 5 seconds condition. The sample was fixed on a glass slide using an epoxy adhesive and mounted on a measuring station. The dynamic hardness evaluated by the present measurement method can obtain different measured values in accordance with the surface depth of the material. The measured value at the m depth from the surface 3 was taken as the surface hardness. Further, the above-mentioned self-adhesive layer containing a soft polymer has an average surface roughness (Ra) of 0.12 /zm or less, preferably 〇. 8 " m or less, and is preferably set to 0.05 / zm or less. . Thereby, the practical fixing force, i.e., the surface adhesive force, which utilizes the self-adhesiveness of the self-adhesive layer can be exhibited. However, when the above average surface roughness (Ra) is larger than mem, the |^#V, % method exhibits self-adhesiveness, which makes it impossible to fix by self-adhesion. Further, the above average surface roughness (Ra) is a value measured by the following method. [Average surface roughness (Ra)] A SE-200 surface roughness meter manufactured by Otsuka Co., Ltd. was used, and the vertical magnification: 1 〇〇〇, the horizontal magnification: 20, the cutoff · 0.08 mm, and the measurement length: 8 mm. Measurement speed: 0.1 mm/min. (Liquid crystal display device) The liquid crystal display device to which the present invention is applied is not particularly limited as long as it has at least a backlight source, a liquid crystal cell, and a liquid crystal display device disposed on the viewing side of the liquid crystal cell. For example, twisted nematic (TN; Twisted Nematic), vertical alignment (VA; Vertically Aligned), optically compensated bending (〇CB; Optically Compenstory Bend), in-plane switching (IPS; In-Plane Switching), and electrical control A liquid crystal display device of an Electrically Controlled Birefringence (ECB) mode. -41 - 201213887 (Functional layer using a hard coat layer or the like) The liquid crystal display device of the present invention has at least a layer selected from a hard coat layer, a reduced reflection layer, and an anti-reflection layer on the observer side surface of the viewing angle enhancement film. The functional layer of the glare layer is better. Each of the above functional layers may be separately formed and may be used by laminating a plurality of functional layers. By using a hard coat layer, the viewing angle enhances the resistance to damage on the surface of the film. Further, by reducing the recombination of the reflective layer and/or the anti-glare layer, it is possible to reduce the external light and improve the visibility of the figure image even when the liquid crystal display device is used in the case of the light-shielding. Moreover, even in a bright environment, no reduction in the viewing angle improvement effect was observed. The reflection-reducing layer or the anti-glare layer may have a function of preventing reflection on the surface, and for example, an anti-glare type, an anti-reflection type, and a type having both functions may be used. In particular, it is better to use both. The functional layer of the above-mentioned functional layer + .a 13 series can also be laminated directly on the surface of the viewing angle lifting film to laminate, or a plastic film such as PET, ... TAC with the above functional layer or a widely distributed product However, the actual method of "comprehensive use of the composite film in the city to produce the layer of the film, the agent is fixed, or σ 佶 甘 ^ ^ 粘 y y y y y y y y y y y y y y y y y y y In the present invention, it is preferable to use a reflective light-damper as a composite in the liquid crystal display film and the above-mentioned functional layer, or to use, for example, a reflective light-reducing plate. The agent is not limited to a specific viewing angle as long as it can be used as an object, but it is preferably a product for use in optics. -42- S-201213887 (Adhesive direction of the viewing angle lifting thinner) The angle-lifting film can change the direction of the viewing angle of the liquid crystal display device by the degree of liftability. g In τν, it is necessary to improve the horizontal direction of the display device for monitors used in personal computers or various devices. Have been asked to change The situation of good vertical fruit. The response should be achieved by changing the direction of the viewing angle. That is, because the viewing angle can be improved, the thin beta angle can be improved, for example, the main diffusion direction of the viewing lift film is improved. The liquid crystal display is preferred. On the one hand, it is preferred to improve the vertical direction of the vertical direction of the film, and the main diffusion direction of the film is preferably in the longitudinal direction of the liquid. Moreover, the above-mentioned setting direction is indicated by the liquid crystal display. Therefore, the horizontal direction is expressed as _, and the 'vertical direction can be the same as above. [Embodiment] Hereinafter, the embodiment will be described, and more specifically, t is not limited by the following embodiments, and The actual sentence can be included in the technical scope of the present invention, and the remaining evaluation method is as follows. When the viewing angle direction of the viewing direction increases the main diffusion direction of the film in the wild angle, when the viewing angle indicates a large horizontal viewing angle of the device, the crystal display device is placed. The vertical erecting of the large display device can also be expressed in the left and right direction. The present invention, however, is suitable for the present invention, and any of the above is in the embodiment of the present invention, "part-43- 6. 201213887 As long as it is not notified in advance, it means "mass portion", and "%" means "% by mass" as long as it is not notified in advance. Further, in the present example, the film of the comparative example which does not satisfy the characteristics of the present invention is convenient in the second embodiment: the viewing angle is increased by the film β 1. The half-value width diffusivity (the wavelength of the wavelength of 44 Gnm in the main diffusion direction The half value width of the light distribution pattern was measured using a variable angle spectrophotometric system GCMS_4 type (Gsp_2 type, manufactured by Murakami Color Research Co., Ltd., variable angle spectrophotometer 〇1 > 3_2 type). Use the transmission measurement mode, the angle of incidence of light: 〇. (film normal direction), burning angle: _8 〇. ~8〇. (from the polar angle of the film normal. The horizontal angle is horizontal), light source: D65, viewing angle: 2. The condition is fixed to the sample stage in such a manner that the main diffusion direction of the sample is horizontal, and the variable-angle light distribution pattern of the transmitted light is obtained. Tilt angle system. . In actual use, the deviation of the axis of the sample stage from the axis of the main diffusion direction is allowed to be about 20 degrees. Measured using a 5 ° pitch. The half-degree angle of the peak of the variable-angle light distribution pattern obtained by the above measurement was obtained and used as the half-value width diffusibility. Before the measurement, the calibration of the transmission diffusion standard plate (milk white glass; 〇pai glass) for the GCMS-4 manufactured by Murakami Color Research Co., Ltd. was used to transmit the light intensity at the light receiving angle of the transmission diffusion standard plate. The relative transmittance was measured as a reference (1.00 0). Further, the transmission diffusion diffusion standard plate was measured by an integrating sphere spectrometer and the transmittance at 440 nm when the air layer was set to i.O. was 0.3069. Each of the samples in the measurement system was measured three times and expressed as an average value thereof. -44- 201213887 When the surface roughness of the two sides of the sample is different, it is preferable to use the film as the viewing angle raising film in order to fix the sample in the direction in which the light is transmitted. In the present invention, the measurement is carried out by fixing the incident light direction from the lower surface roughness. Further, the main diffusion direction is the in-plane direction of the film which can obtain the maximum light diffusibility, and can be easily determined using a laser pointer (lasei_pointer) or the like. 2. End spread diffusivity (relative transmittance of light at a wavelength of 440 nm at an exit angle of 30 degrees in the main diffusion direction) Using a variable angle spectrophotometric system GCMS-4 type (GSP-2 type · Murakami Color Research Co., Ltd. The measurement was carried out by a system, a variable angle spectrophotometer GPS-2 type). Use the transmission measurement mode, the angle of incidence of light: 〇. (film normal direction), light receiving angle · 〇 ° ~ 80. (from the polar angle of the film normal. Azimuth angle level), light source: D65, viewing angle: 2. The condition is fixed in such a manner that the main diffusion direction of the sample is horizontal (the deviation of the axis of the sample stage from the axis of the main diffusion direction is allowed to be about 20 degrees) to obtain the variable angle spectrophotometry of the transmitted light. curve. Tilt angle system. . The acceptance angle is from 0 ° to 10 0. Is tied to 1. The spacing is 1 〇. To 8 〇. Is tied to 5. Spacing determination. Before the measurement, 'the correction of the device using the transmission diffusion standard plate (milky glass) for GCMS-4 manufactured by Murakami Color Research Co., Ltd.' is used as the reference (1.000) of the transmitted light intensity at the acceptance angle of the transmission diffusion standard plate. And measure the relative transmittance. Further, the above-mentioned diffused diffusion standard plate was measured by an integrating sphere spectrometer and the transmittance at 440 nm when the air layer was set was 0.3069. 6 -45-201213887 Each sample of the measurement system was measured three times, and the average value thereof was expressed by the wavelength MOnm of the light receiving angle (hereinafter referred to as the exit angle) of 3 degrees. In the case where the surface roughness of the both sides of the sample is different, it is preferable to use the angle-lifting film for the purpose of fixing the sample in the direction in which the light is transmitted. In the present invention, the direction of the incident light of the surface roughness of the vehicle is measured and the direction of the main diffusion direction of the stomach is the maximum in-plane direction of the film. It is decided by the device. 3. The end spread diffusivity ratio (relative to the transmittance of the exit angle of the light at 44 〇 nm in the main diffusion direction (1 〇), the ratio of the transmittance at the 丨 degree (13 〇) (I3Q/I〇) Xl〇〇)) Using the same method as the above-described end spread diffusion degree, the exit angle of 440 nm (the transmittance of Γ and 30 Å is used to obtain the exit pupil angle of the light having a wavelength of 440 nm in the opposite diffusion direction (10)' at the exit The ratio of the transmission of the angle of 30 degrees ("〇") (ΐ3〇/ι〇>< expressed in %. In the case where the surface roughness of the two sides of the sample is different, the sample is measured in a direction in which the direction of transmission of the light in the system is uniform. In the present invention, the measurement is carried out by fixing from the light direction in which the surface roughness is low. 4. Anisotropy The extended diffusion degree obtained by the above-described end-expansion diffusion degree measurement was set as (l3G)H. Said. The transmission is the field of view. The light diffusion is simply a wavelength angle 30 at a wavelength of 100% at the principal transmittance and 201213887 at the end where it is fixed at the end. In the above-described terminal spread diffusion measurement method, the main diffusion direction of the sample is perpendicular to the direction. The method is fixed to the sample stage, and the end spread degree which is orthogonal to the above-mentioned (i3〇)H, that is, (I3〇)v, is obtained by the same method as described above. The degree of anisotropy was calculated using the following (1). (I30)h/(I30)V (1) 5. The total light transmittance is measured by a self-recording spectrophotometer (UV-3150: manufactured by Shimadzu Corporation). The integrating sphere attachment device (ISR-3 1〇〇; manufactured by Shimadzu Corporation) The measurement was carried out by measuring the spectral spectrum at a slit width of 12 nm using a high-speed scanning wavelength of 3 〇〇 to 8 〇〇 nm and at a transmittance of 55 〇 nm. In the measurement, the value obtained by fixing the sample fixing device to the sample fixing device so that the main diffusion direction of the sample is orthogonal to the measurement is used. The main diffusion direction is determined by using a laser indexer and illuminating the sample with light and detecting the direction of diffusion of the emitted light. In the case where the surface roughness of the two sides of the sample is different, it is preferable to fix the sample in a direction in which the transmission direction of the light in actual use is uniform. In the present invention, the measurement is carried out by fixing the incident light direction from the lower surface roughness. 6. Reduced front brightness Use RISA-C0L0R/0NE-II (made by HI_land) to measure. A commercially available VA type liquid crystal display device is horizontally disposed on a stage, and a white image is displayed in the center of the panel (N〇kia m〇nit〇r for the company made by Windows V i.OO^ia) In the image mode, 3 drops of water were dropped on the top of the white image using a dropper, and then a sample film was placed on the -47-201213887, and the water between the panel and the film was expanded and densely folded. The CCD camera is fixed at a position perpendicular to the lm from the display surface, and the brightness is measured using the following conditions. Set the desired enthalpy to Is. On the other hand, the brightness of the panel itself which is not close to the sample film is determined by the same method. The desired brightness is set to Ib. The front luminance reduction was calculated from the following (丄) equation, and the front luminance reduction was expressed in %. Reduction in brightness = (Ib - Is / Ib) xl00 (%) Brightness is divided into 25 parts of 5x5, and the brightness of all the pixels of 9 parts of 3x3 of the center part is measured and the average value is used. Said. Further, the sample film was measured by providing the main diffusion direction so as to be substantially parallel to the lateral direction of the panel. 7. Improvement of viewing angle The measurement was performed using risa-color/one-ii (manufactured by Hi-land Co., Ltd.). A commercially available VA type liquid crystal display device is horizontally placed on a stage and a white image (Nokia monitor test for ndc>ws V l.〇 (Nokia) Farbe mode) is displayed in the center portion of the panel. On the top of the white image, 3 drops of water were dropped using a dropper, and then a film of the film was placed thereon, and the water between the panel and the film was uniformly spread and sealed. The 'CCD camera was fixed in the vertical direction from the surface of the display. position. The CCD camera is placed at -70 with respect to the panel surface of the liquid crystal display*. To + 70〇 seven buckles 〇.,, <Inter-equal movement, and using the following conditions to measure the angular dependence of the X value of the CIE expression & Yxy糸, to obtain the X value (χ〇) which is expected to be 0 degrees with respect to the vertical line And the X value at 70 degrees (x70s). 201213887 On the other hand, the X value (x70B) of the panel itself without the viewing angle enhancement film sample is obtained, and the value of Δχ(7〇度)=x7〇s_x7〇b is calculated by using the value of 〇 and X values. The white image is divided into 25 parts of 5χ5, and the center part is measured 3><The brightness of all the pixels of the nine parts of 3 is expressed by the average value thereof. Further, the sample film was measured by providing the main diffusion direction so as to be substantially parallel to the lateral direction of the panel. Further, when the viewing angle of the horizontal plane of the flat mussel liquid crystal display device is improved, the effect is measured by setting the above-described equator side in the horizontal direction of the liquid crystal screen. On the other hand, when the effect of improving the viewing angle in the vertical direction of the pupil of the liquid crystal display device is evaluated, the vertical direction of the liquid crystal screen is measured and set in the above-described equator direction. (Example 1) 10 parts by mass of a cyclic polyolefin resin (melt flow rate '2, 0 (230 C) by T〇pAS (TM) 6013F-04 Topas Advanced P〇lymers Co., Ltd.) and 90 parts by mass Acrylic resin 2〇nD (manufactured by Sumitomo Chemical Co., Ltd., Sumitomo NOBLEN melt flow rate: 2.5 (23〇〇c)), melt-kneaded at a resin temperature using a pCM45 extruder manufactured by Becky Iron & Steel Co., Ltd., and used T The font die was extruded and cooled by a mirror cooling roll to obtain a viewing angle lifting film having a thickness of 90. In the case of the above-mentioned parts, the film is adhered to the cold portion by an electrostatic adhesion method. The surface of the cooling roll was set to 2 〇eC ^ The film was taken up at a speed of 3 m/min. 特性 The characteristics of the obtained viewing angle-lifting film are shown in Table i. -49- " 201213887 In the viewing angle-increasing film obtained in the present embodiment, the reduction in the front luminance can be suppressed to within 20%, and the remarkable viewing angle improvement effect is exhibited, which is high quality. Moreover, the Δ χ (7 〇 degree) of the panel itself when the viewing angle lifting film is not adhered is +0.016. (Example 2) 35 parts by mass of a cyclic polyolefin resin (T〇pAs(TM) 6013S-04 Topas Advanced p〇lymers company) was used as a base layer using a second melt extruder. Melt flow rate: 2.0 (230 ° C) and 65 parts by mass of block copolymerized resin containing ethylene and octene (INFUSE (TM) D98 17 15 manufactured by Dow Chemical Co., Ltd. Melt flow rate: 26 (23 (TC) )), and it is supplied by pre-mixing, and a second melt extruder is used as the surface layer to supply polypropylene-based adhesive resin (ADMEWTMDQF55! Melt flow rate by Mitsui Chemicals Co., Ltd.: 5·7 (19 (Γ(:))) After melt-coextrusion using a T-die method, a thickness of <%" of the viewing angle lifting film is obtained by cooling with a cold (4) of pear skin. The film uses a vacuum for the cooling roll adhesion during the above cooling. The chamber was melted and the second melt extruder was in the early-axis mode. The mouth temperature system was 23〇 and 25, respectively. In addition, the surface temperature of cold 2 was 5Qt. The film was 2im/ The minute material is taken up. The layer thickness structure is 8/40/8^m). The characteristics of the thin enamel are shown in the table of view. Compared with the viewing angle lifting film obtained in the example i, the viewing angle of the film obtained in the present invention is reduced by 201213887 (Example 3). In the method of Example 2, except that the thickness and layer thickness of the thin medium were changed to 40 " m and 6/28/6 (//m), the outlet temperature of the extruder was changed to 270T; The viewing angle lifting film was obtained in the same manner as in Example 2 except that the taking speed was changed to i8 m/min. The characteristics of the obtained viewing angle lifting film are shown in Table 1. The viewing angle lifting film obtained in the present example. It is excellent in both the viewing angle improvement effect and the frontal brightness reduction, and is high quality. (Example 4) Two melt extruders were used, and a second melt extruder was used as a base layer to supply 50 parts by mass of a cyclic polyolefin. Resin (T〇pAs(TM) 5013S-04 Topas Advanced P〇lymers, Melt Flow Rate: 8.6 (2301)) and 50 parts by mass of block copolymerized resin containing ethylene and octene (INFUSE, manufactured by Dow Chemical Co., Ltd.) (TM) D9100.15 Melt / Melon speed: 2.4 (230 C)), the second melt extruder was used as the surface layer to supply the polypropylene resin 2011D (manufactured by Sumitomo Chemical Co., Ltd., Sumitomo NOBLEN melt flow rate: 2.5 (23〇t:)), and the τ-shaped die method was used. After the melt co-extrusion, a viewing angle raising film having a thickness of 115//m and a layer thickness structure of 30/55/30 (#m) was obtained by cooling using a mirror-finished cooling roll. The film is subjected to the use of a vacuum chamber for the cooling roll adhesion during the cooling described above. The first melt extruder was a biaxial system, and the second melt extruder was a uniaxial system, and the outlet temperature was 2 5 Torr for both extruders. Further, the surface temperature for cooling was set to 2 (rc. The film was taken up at a speed of 3 〇m/min. The characteristics of the obtained viewing angle-lifting film are shown in Table 1. 〇» -51 - 201213887 In the embodiment, the viewing angle and the viewing angle lifting film obtained in the example are in fact, but the reduction in frontal brightness is not as good as the improvement in the viewing angle of the J-system (Example 5). In the method of Example 2, the 'melt extruder'', the first melt extruder and the first outlet temperature were changed to the surface of the cooling roll to be more 250 C and 23 (TC, Outside the 15m/min, the spotting speed is changed to the lifting film. The same method as in Example 2, the viewing angle is obtained, and the obtained viewing angle is compared with the characteristic of M. According to the example obtained in Example 2, the 诣&& brothers 野 梃 梃 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Improvement effect improvement (Embodiment 6) In Example 1 & ancient, soil. (t〇paS(tm)6()1 3s ' / 'two will be ring-shaped poly-smoke resin melt taste T〇pas Advanced Polymers company braking speed: 2.G (10). c)) and poly (four) system (four) 2 〇, Sumitomo deleted brush _ flow rate: 2.5 ( Change the blending ratio of 23 (^) A 3 temporarily change the AW by 65 mass parts, and use the same method as in the first embodiment to obtain the viewing angle raising film. The known viewing angle is improved. The characteristics of the film are shown in Table 1. Compared with the viewing angle-increasing film obtained in Example i, the viewing angle improvement effect of the film was reduced in the viewing angle of the present invention, but the front brightness was improved. 201213887 ( Example 7) In the method of the first embodiment, except that the thickness of the film was changed to 60 // * 乂, the viewing angle raising film was obtained in the same manner as in Example 1 alone. The characteristics of the viewing angle-lifting film are shown in Table 1. Compared with the viewing angle-increasing film obtained in Example 1, the viewing angle-increasing film obtained in the present example has a good frontal brightness, but the viewing angle is good. The improvement effect is less. (Embodiment 8) η is Example 2, except that the resin supplied to the i-th extruder is made up of 2 mussel star-shaped cyclic polyolefin resin (melt flow rate by TOPAS(TM) 60 13S 04 Top as Advanced P〇lymers) Shangyu (7) Gt)) and 8G f parts containing u and money of the enemy copolymer resin (Dow Chemical INFUSE (TM) D98i7 15 melt flow rate: 26 (23 (rc)), and film thickness and layer A viewing angle lifting film was obtained in the same manner as in Example 2 except that the thickness structure was changed to 1 08 // m and 24/6 〇/24 (# m). The characteristics of the obtained viewing angle enhancement film are shown in Table 1. The viewing angle enhancement film obtained in the present embodiment is excellent in both the viewing angle improvement effect and the front luminance reduction, and is high in quality. (Example 9) ^In Example 2, except that the resin supplied to the first extruder was composed of 10 parts by mass of a cyclic fusion solder resin (T〇pAS(TM) 60 1 3S-04 Topas Advanced P〇iymers company melt flow rate: 2.0 (230. 〇) 贞 90! Measured by block copolymerization of ethylene and octene -53 - 201213887 Resin (Dow Chemical INFUSE (TM) D9817 melt flow rate A viewing angle lifting film was obtained in the same manner as in Example 2 except that the film thickness and the layer thickness structure were changed to 1〇8/^ and 24/6〇/24 Um. The characteristics of the obtained viewing angle-lifting film are shown in Table 1. The viewing angle obtained in the present example was obtained by the viewing angle-increasing film having the characteristics of: 特: special::: quality. 10) In the method of the yoke example 2, the m is added and the sound thickness is 槿m ten, "the thickness of the sub-film is changed to 84#, and the thickness of the layer is changed to 12/6〇/12 ("m) In the same way, the viewing angle lifting film is obtained. /, only the characteristic a of the obtained viewing angle raising film is compared with the viewing angle obtained in the second embodiment. Table ^ - The visible film obtained in the example is large in size, and although the front brightness is reduced, the effect of improving the viewing angle is improved. I. Example 11) The method of Example 5 is In addition to the mirror surface, the surface of the V-roller is changed to electric, and the surface temperature of the cold-storage is changed to 2 (TC, daily income; more than 23 m/min, the same as in the fifth embodiment: The method of obtaining the field of view obtained by winding up the viewing angle of the film 1 is not shown in Table 1. The characteristics of the moon-enhanced film are shown by the viewing angle increase of 5 obtained in the present embodiment. The quality of the product is the same as that of the product. It is a high-grade 54-201213887 (Example 1 2) Two melt extruders are used, and the first melt extruder is used as the base layer, and 50 parts by mass is supplied. Polyolefin resin (melt flow rate: 8.6 (230 ° C) manufactured by TOPAS 50 1 3S-04 Topas Advanced Polymers Co., Ltd.) and 50 parts by mass of block copolymerized resin containing ethylene and octene (INFUSE (manufactured by Dow Chemical Co., Ltd.) TM) D9100.15 glare flow speed: 2.4 (230. (:)), as a table The second melt extruder was used to supply polypropylene resin 2 0 1 1 D (manufactured by Sumitomo Chemical Co., Ltd., Sumitomo NOBLEN melt flow rate: 2.5 (23 (TC)), and melt coextrusion using a T-shaped die. After that, a viewing angle raising film having a thickness of 90 // m and a layer thickness structure of 30/3 〇/3 〇 (/zm) was obtained by cooling using a mirror-finished cooling roll. The film is subjected to a vacuum chamber for cooling roller adhesion during the above cooling. The first melt extruder is a biaxial system, and the second melt extruder is a uniaxial system. The outlet temperature is 25 (rc for both extruders. Further, the surface temperature of the chill roll is set to 2 (rc. The film was taken up at a speed of 3 〇m/min. The characteristics of the obtained viewing angle-lifting film were shown in the table of view, compared with the viewing angle-lifting film obtained in Example 5, and the viewing angle obtained in the present example was increased.胄, the effect of improving the viewing angle is slight, but the front brightness is reduced to a high quality. (Example 1 3), and the method of Example 8 is supplied to the first extruder, and Changed to 2G parts by mass of cyclic olefinic resin (T〇pAs(T), Ad·6' Ρ〇1, Γδ company melt flow: 〇C)) and 8G parts by mass including ethylene and octene Block total -55- 201213887 resin (DowchemicaiS system lNFUSE(TM)D98i7 i5 melt flow rate: 26 (23 (TC)), and change the film thickness to 56 "m thickness structure changed to 12/32/12Um In addition to the same method as in Example 8, the viewing angle lifting thinning was obtained. The characteristics of the obtained viewing angle lifting film were displayed. Table 1. Compared with the viewing angle angle-increasing film obtained in Example 8, the viewing angle-increasing film obtained in the present example was slightly inferior in viewing angle improvement, but the front side brightness reduction was small, which was excellent. Example 14) The method of Example 1 except that a cyclic polyolefin resin (T〇PAS(TM) 6013F-04 Topas Advanced p〇lymers company melt flow rate: 2.0 (23 (TC)) and poly The propylene resin was used in the same manner as in the first embodiment except that the blending ratio was changed to 35 parts by mass and 65 parts by mass. The method is to obtain a viewing angle lifting film. The characteristics of the obtained viewing angle lifting film are shown in Table 1. > Compared with the viewing angle lifting film obtained by the implementation, the field of view known in the present example The angle-lifting film 'has a slight deterioration in frontal brightness' but the effect of improving the viewing angle is improved. (Example 15) The method of Example 5, except for the 35-part ring to be supplied to the i-th extruder Polyolefin resin t〇Pas(tm)6〇13s〇4 T〇pas vanced P〇lymers company's melt flow rate: 2 〇 (23 〇 it) and 65 mass parts of ethylene and octene block copolymer resin (d〇w

INFUSE(TM) D9817.15 melt flow rate -56- 201213887 ••26 (23(TC)) manufactured by ChemiCal Co., Ltd. is supplied without prior fermentation, and the thickness layer thickness structure is changed to 6/28/6 (yam) ” ', _, the outlet temperature of the broadcaster is changed to 27 respectively. Two extrusion: and... == Table: temperature change to 2〇t, film take-up speed = more: = clock: external 'use and example 5 The field of view = lift-off film was obtained in the same manner. The characteristics of the obtained viewing angle-lifting film are shown in Table 1. The viewing angle obtained in the example 5 obtained in the present example was improved in thinness. It has the same characteristics as the film to be applied, and is high (Comparative Example 1) 50 parts by mass of a polypropylene resin (manufactured by Sumitomo Chemical Co., Ltd., Sumitomo NOBLEN FS201 1DG3), and 3 parts by mass of ethylene-butene copolymer (Mitsui Chemical Co., Ltd.) Company, TAFMER Α〇585χ) and 2〇 parts by mass of nanocrystalline structure-controlled polyolefin elastomer resin (manufactured by Mitsui Chemicals, Inc., n〇ti〇Ρ Ν 3 5 6 0) by using biaxial extrusion in advance Melt-extruding to obtain a kneaded poly-smoke resin composition, the polyolefin-based resin The composition was obtained in a 60 mm 0 uniaxial extruder (L/D; 22) at a resin temperature of 24 (rc was melt-mixed and extruded using a T-die, and was obtained by using a cold rolling section of a casting die of 2 〇 art. The sheet was not stretched. Subsequently, the unextended sheet was distinguished from the extension temperature by a longitudinal stretching machine by a longitudinal stretching machine. The crucible was stretched 4.5 times and further extended to 145. The crucible was extended 82 times and heat-set at 158 degrees. Subsequently, one surface was subjected to corona treatment to obtain a 25 A m light-diffusing film. The characteristics of the obtained viewing angle-lifting film are shown in Table 1. -57 - 201213887 The viewing angle-lifting film obtained in this comparative example, although The front side brightness reduction was small, but the viewing angle improvement effect was poor, and it was low quality. L (Comparative Example 2) Two melt extruders were used, and as the base material layer & a layer, the first melt extrusion machine was used. 〇〇 〇〇 聚丙烯 聚丙烯 聚丙烯 WF WF WF WF WF WF WF WF WF WF (Sumitomo Chemical Co., Ltd., Sumitomo (1) and 83 Berry's propylene-propylene copolymer HF31〇lc (manufactured by Nippon Co., Ltd.) was cooled by co-extrusion using a τ-shaped die after being melt-co-extruded in a zi-shaped die in a manner of becoming A/B in an extrusion die. Then, four sheets were obtained, and then the unextended sheet was subjected to a peripheral speed difference of the longitudinal stretching machine to the stretching temperature of 120. (: The stretching was performed 48 times, and then, after heating at 165 t using a tenter type stretching machine '于155. The extension temperature of (: is extended by 9 times in the lateral direction. Then, the heat fixation is performed at 166 degrees to obtain a thickness of the layer of layer a and layer B of 22·2" and a viewing angle of 28 hearts. Before the winding, The surface of the base layer A was subjected to corona treatment, and the characteristics of the obtained viewing angle-increasing film were shown in Table 2. In the viewing angle-increasing film obtained in this comparative example, although the reduction in front luminance was small, the improvement in the viewing angle was poor. (Comparative Example 3) 'The method of the ninth embodiment is the same as the ninth embodiment except that the thickness is changed to the claw and the layer thickness structure is changed to 6/16/6 ("m)". The method of obtaining the viewing angle enhancement film. -58- 201213887 The characteristics of the obtained 's gauge angle increase thinner are in this comparative example a, 颂 is not in the table! The degree reduction is small, and the viewing angle of 0 to Although the front side is bright (comparative example π viewing angle improvement effect is poor, it is m. In addition to the example 1 t, the actual method is used, except that the film thickness is changed to 3" m. Will get the 祯 step & in this The characteristics of the film of Comparative Example I are shown in Table 1. The degree of decrease is small, and the viewing angle of the θ is improved. Although the front side is bright (Comparative Example 5) The effect of improving the angle of f is 'low quality'. In Example 5 only And the method of changing the layer thickness structure, except that the thickness is changed to 175//m, the same square of the example 5, 25/125/25(")^, and the obtained viewing angle is used. The film was lifted. The characteristics of the film in this C were improved, but the viewing angle of the film was improved. Although the viewing angle (Comparative Example 6), the front side brightness was greatly reduced, it was low quality. In addition to the use of the method, the film thickness was changed to 15 使用 in addition to the use of the same method. The same method was used to obtain the field of view angle-lifting film to obtain the field of view. The characteristics of the film in this comparative example are shown in the table. Good, but the current wild angle lifting film, although the brightness of the field of view is greatly reduced, is low quality c -59- 201213887 (Comparative Example 7) In the method of the yoke example 9, in addition to thickening and layer thickness structure f The horse 216/zm is borrowed more than 48/120/48 (#m) In the same manner as in Example 9, the viewing angle enhancement film was obtained. The characteristics of the obtained viewing angle enhancement film showed that the improvement of the viewing angle improvement obtained by the example was better than that of the example, but The viewing angle (Comparative Example 8) is low and low. It is of low quality. (5) In the thickness of 1 〇〇 "m high transparency polyester thin 臈 (Dongyang 啧 eight π system COSMOSHINE eight 43_ and ^ (hand The square size of the square powder of the company, the square and the shell company is equal to the amount of 5〇f, the average amount of TAftIC (TM) FH s, the resin particles (the Toyo spinning joint mixture to dry heart thickness =) and the amount of Γ The polyamine A is dried and applied to the viewing angle lifting film. The characteristics of the obtained viewing angle enhancement film are shown in Table i. The viewing angle enhancement film obtained by the example has a good effect, but the front brightness is lowered, which is low quality. Angle-60 201213887 [Table i] Half-value width diffusivity (degrees) End spread diffuser end spread diffusivity ratio (%) Unidirectionality total light transmittance (%) View angle improvement effect (Δχ (70 degrees)) Front luminance reduction rate (%) Example 1 5 4.0 0.82 62 87.2 -0.0135 14.0 Example 2 10 2.5 3.04 42 86.7 -0.0105 10.6 Example 3 7 3.7 2.05 82 87.7 -0.0125 12.9 Example 4 8 7.6 4.71 97 84.3 -0.0145 18.9 Example 5 6 6.4 3.67 82 85.1 -0.0135 17.5 Example 6 13 1.9 L31 56 88,1 -0.009 8.5 Example 7 5 1.7 0.33 85 88.5 -0.0075 10.4 Example 8 15 2.0 3.71 15 86.1 -0.0120 15.3 Example 9 7 0.8 0.92 6.0 87.1 -0.0100 11.5 Example 10 15 3.9 4.8 48 84.0 -0.0135 18.3 Example 11 5 6.0 2.60 197 85.8 -0.0100 15.8 Example 12 6 4.9 1.87 122 87.6 -0.0085 9.7 Example 13 9 3.9 2.75 43 88.1 - 0.008 7.7 Example 14 12 3.8 3.18 124 79.9 -0.0145 18.6 Example 15 8 3.8 3.18 51 79.9 -0.0145 18.6 Comparative Example 1 5 0.5 0.16 28 89.4 -0.0025 5.2 Comparative Example 2 11 0.1 0.13 1.6 91.0 -0.004 4.1 Comparative Example 3 8 0.3 0.20 6. 0 89.0 -0.0045 4.1 Comparative Example 4 5 0.6 0.09 60 90.8 -0.0025 3.3 Comparative Example 5 57 5.3 45.4 27 75.9 -0.0150 42.9 Comparative Example 6 15 4.7 6.3 Ί6 78.0 -0.0175 24.9 Comparative Example 7 22 1.7 9.7 2.4 76.5 -0.0160 28.0 Comparison Example 8 20 0.5 6.1 1.0 59.0 -0.0115 32.7 (Example 16 and Example 17) The viewing angle raising film obtained in Example 1 and Example 2 was made using the optical double-sided adhesive tape with the main diffusion direction as a monitor. In the horizontal direction, it adheres to the surface of the VA type liquid crystal monitor, and the horizontal viewing angle improvement effect and the front brightness reduction are evaluated. The results are shown in Table 2. As a result equivalent to the first embodiment and the second embodiment, the viewing angle improvement effect can be exhibited in a state where the reduction in front luminance is suppressed. Even in the case of visual observation, the improvement of the viewing angle in the horizontal direction can be confirmed. Moreover, the reduction in frontal brightness when viewed from the front is also small.

-61 - 201213887 (Comparative Example 9 and Comparative Example ι) The viewing angles obtained in Comparative Example 3, . . . , and Comparative Example 4 were measured using the two-sided adhesive tape with the main diffusion direction as the monitoring horizontal direction. The method is applied to the VA type liquid crystal monitor and the horizontal direction, day, viewing angle improvement effect and front brightness price are performed. The results are shown in Table 2. The daughter-in-law obtained the same results as the comparison 彳丨 > A] 3 and Comparative Example 4, and the decrease in the degree of twist was small, and the effect of improving the viewing angle of 彳 θ θ 小 was small. The viewing angle improvement effect is small when used. (Comparative Example 11 and Comparative Example 12) The viewing angles obtained in Comparative Example 5 and the ice β pair and the comparative example 8 were used in the horizontal direction in which the main diffusion direction was used for the optical double-sided adhesive tape. The plucking force "J von I control u ^ * is attached to the VA mode LCD monitor 5| and the horizontal square latch &, ^ 35. The viewing angle improvement effect and the front bright yield are shown. The results are shown in Table 2. The degree of improvement was better than that of Comparative Example 7, and the horizontal field of view was reduced in frontal brightness. The brightness used was greatly reduced. & good effect was good, but the rough surface of the positive film lifter was raised. , the lowering of the evaluation, although the frontal visual observation of the rough surface of the thin film device, the reduction of the observation while the visual field of the observation surface observation [Table 2]

-62- 201213887 (Example 18 and Example ι9) In the slanting of the surface of the double-sided adhesive tape of the viewing angle-lifting film + λ. . _ ^ ^ 17

The opposite side of the FT α〇Τγλλ surface, adhered to the Z 硕 K K , , , , , , , , , , , , , , , , , , , , , , , , , , , K K K K K K K K K K K K K K K K K Remove the separator on the side of the adhesive tape side of the 0 liter/# film composite and remove it in the direction of the main diffusion direction in the direction of the general direction of the 隹 益 VA VA VA VA VA VA And the evaluation of the horizontal direction (9) wild angle improvement effect and the front brightness reduction. The results are the same as those of the embodiment 16 and the embodiment 17, and, because of the anti-reflection effect, the liquid crystal panel is placed even if ^^ + The bright ring brother observation also did not observe the use of the viewing angle of the viewing angle, because it was reduced. Moreover, even if the outer 〇 is the moon b enough to suppress the reflection of the external light, the image r will be... because the left hard processing does not It is easy to get hurt. (Recognition Example 20 and Example 2 1) In the case of Example 16 and Example 1 7 + 丄 „ „ ^ 17 Example 17 adhered to the surface of the double-sided adhesive tape of the viewing angle lifting film

The CT Λ 0 J opposite surface was adhered to the protective groove film of the anti-glare display made by KUREHA E ASTOMER Co., Ltd. to obtain a functional layer composite view and a daily β r angle k 溽 溽 film composite. The separator of the two sides of the adhesive tape on the side of the angle-lifting film composite is: in the direction of the main diffusion direction of the monitor in the horizontal direction: the surface of the VA liquid crystal monitor sold, and the horizontal line 11. Evaluation of the improvement of the viewing angle and the reduction of the front brightness. The results are the same as those of the sixteenth embodiment and the seventeenth embodiment, and that the liquid crystal panel is displayed in the bright direction of the bright ring-63-diffusion direction film in the direction of the large direction of the system panel by the addition of the antireflection effect. Adhesive direction of each viewing angle improved the effect of the self-adhesive fruit and 201213887 壬 观察 observation also did not see the p 1 light into the wide-angle soaring effect is reduced. In addition, even if it is used in the wild, it is possible to suppress the 盹A & visibility of external light ^ ^ Buguang's reflection, shadow _. Because of the hard processing, it is not easy to injure the county (the example 22 and the embodiment 23). In the sixteenth embodiment and the seventeenth embodiment, the main direction is changed so that the main direction of the film is increased by the viewing angle. The vertical angle of the panel image is improved. (only Example 24 and Example 25) The methods of Example 16 and Example 17 were TN type, and the viewing angle raising film was attached to the horizontal direction to evaluate the front side brightness reduction in the horizontal direction. The results are shown in Table 3. (Embodiment 26 and Example 27) In the case of Example 16 and Example 17, the TN type was further evaluated, and the viewing angle was raised by thinly thinning the vertical angle of the viewing angle to the vertical direction. The results are shown in Table 3. (Comparative Example 1 3 and Comparative Example 14) In the methods of Example 23 and Example 24, θ was used in Comparative Example 4 and Comparative Example 4 except for the film of the adhesive device. Thousands and then the thinness and fineness of Example 5, Example 23 and Example 24 were fed in the same manner. '% set and will evaluate the adhesion of the external image to the viscous surface and the stipulation of the liquid crystal display mold. In the direction of each of the % viewing angles, the effect is improved. -64- >*c* 201213887 (Comparative Example 1 5 and Comparative Example 1 6) The methods of Example 25 and Example 26 are to be adhered to a liquid crystal display device. The film was used in the same manner as in Example 25 and Example 26 except that the film of Comparative Example 4 and Comparative Example 5 was used, and the results of the evaluation are shown in Table 3. Further, the Δx (70 degrees) of the panel itself when the viewing angle lifting film is not adhered is a value of +0.04 8 , -0.05, and +0.0 14 in the left-right direction, the downward direction, and the upper direction. [Table 3] Effect of improving the viewing angle in the main diffusion direction when film bonding is used (Δχ (70 degrees)) Front luminance reduction rate (%) Left and right direction downward direction Upward Example 24 Embodiment 1 Transverse direction -0.028 - - 13.4 Example 25 Example 2 Transverse direction -0.028 - - 15.9 Example 26 Example 1 Longitudinal direction - -0.011 - 0.002 13.4 Example 27 Example 2 Longitudinal direction - -0.020 - 0.001 15.9 Comparative Example 13 Comparative Example 4 Transverse direction - 0.040 - - 7.3 Comparative Example 14 Comparative Example 5 Horizontal direction - 0.051 - - 42.7 Comparative Example 15 Comparative Example 4 Vertical direction - -0.003 + 0.001 7.3 Comparative Example 16 Comparative Example 5 Vertical direction - -0.028 - 0.146 42.7 From Table 3, the following is known. situation. By using the viewing angle enhancement film of the present invention in the horizontal direction, it is possible to improve the viewing angle improvement effect in a state where the front luminance is lowered as in the case of the VA liquid crystal display device. The vertical direction is improved by the observation from the upper side and the observation from the lower side. Compared with the horizontal direction, when viewed from the lower direction, although the effect is small, the viewing angle characteristics can be improved. However, when viewed from the upper side, the effect of improving the viewing angle characteristics is very small. It is presumed that the viewing angle characteristic of the liquid crystal display device itself is superior to the difference in behavior when viewed from the upper side and when viewed from the upper side as compared with the horizontal direction. -65-^ 201213887 The liquid crystal display device of the TM type has a color inversion which is considered to be important in the color shift described above, although the effect in the upper direction is a little bit, but the film is raised in the viewing angle of the present invention, and the color tone is reversed. The transfer characteristic was in the direction of the package 3 and a significant improvement was observed in either direction. Therefore, the method for improving the viewing angle of the present invention can be said to be effective also for the TN type liquid crystal display device. (Example 28) The method of Example 24 was carried out in the same manner as in Example Μ except that the adhesion of the viewing angle-lifting film was changed to the human light-emitting side of the liquid crystal cell. △x (70 degrees) is the 〇〇14, and the ancient 葙 α α positive redundancy reduction rate is 13.6% 〇 even if the viewing angle is increased by 膣# 升 杲 & fr & μ, 〇 在 液 液The incident light, the viewing angle can also be revealed. (Examples 29 and 30) The haze angle lifting film was absorbed by the respective polarizing films of Example 2 and Example 5 in such a manner that the main diffusion direction was orthogonal to each other and the thickness was 80# m). The pattern of the shaft and the viewing angle of the lifting film is adhered to the opposite side of the polarizer containing PVA and iodine, and the TAC pen wax, & / film (gentleman FILM) is formed into a polarizing plate. The commercially available VA type liquid曰

The heart L-plate of the I-day display is stripped and smashed, and the upper side of the J-panel is biased by the above-mentioned polarizing plate, and the direction of the diffusion is the main force of the water-saving single-layer lifting film. In the way of setting, the sum, & wild angle improvement effect is another τ π 噢 horizontal direction △ result and the front brightness reduction evaluation. The evaluation results of the evaluation of the viewing angle-lifting film of the example 201213887 were obtained. The adhesives of the examples 2 and 5 were excellent in adhesion by the method shown below. On the other hand, the surface layers of Examples 1, 4 and 12 and the like include a modified layer of a polyolefin resin containing a polar group, and the adhesion of the film is poor.曰 (adhesion evaluation method) On the surface of the viewing angle lifting film, the compounding solution was dried by using a wire bar at a thickness of 5 "m in a dry manner: drying at 70 C for 5 minutes, the compounding solution The degree of saponification adjusted to a solid concentration of 5 mass% is 74〇1. 1% of the polyvinyl alcohol polymer = solution 'the block polyisocyanate parent-linked agent which is polymerized by the following method And a catalyst containing an organotin-based compound is added so that the solid content ratio of each of the polyvinyl alcohol polymers is 〇〇4 and 〇〇2. The polyvinyl alcohol polymer aqueous solution is judged to be easy to use by adding red material = adult. A glass plate having a thickness of 5 mm on both sides of the tape was adhered, and the prepared sample was adhered to the opposite surface of the surface of the ethylene ether t-layer formed on the evaluation sample, followed by the above-mentioned two-sided adhesive π. The through-the-polyethylene polymer layer was applied using a cutter guide having a gap of 2 mm and reached a lattice-shaped cut of the base film. Subsequently, an adhesive tape (cello-tape (registered trademark) CT·24; Mmm width) made by NICHIBAn was adhered to the lattice-shaped cut surface. After the adhesive is pressed against the air remaining on the interface to make it completely sealed, the operation of peeling off the adhesive tape vertically and vertically is performed 10 times. The number of cells in which the polyvinyl alcohol polymer layer was peeled off was evaluated, and the average value of the ίο times was 50 or less. The sweat diffusion is (Example 31 and Example 32). The absorption axis of each of the polarizing film of Example 2 and Example 5 is diverged from the square of the field of view, and the main diffusion of the film is again A TAC film (m manufactured by Fuji FILM Co., Ltd.) was attached to the opposite side of the polarizer containing PVA and iodine to form a polarizing plate. The surface plate of the commercially available TN liquid crystal display device was peeled off and changed to the above-mentioned polarizing plate, and the direction of the expansion was horizontally arranged to evaluate the horizontal wild angle improvement effect and the front brightness reduction. The same results as in Example 25 were obtained. (Example 33 and Example 34) The surface of the acrylic pressure-sensitive adhesive layer on the side of the acrylic pressure-sensitive adhesive layer on the double-sided adhesive film for optical use (the base material was thin (4) was 38 // m) was used. You "and the viewing angle of the film to obtain a field of view:: protective film, the two-sided adhesive film for optical use is manufactured according to the method described in paragraph 〇2〇4~ of the example i of the publication of the publication 09 09 73937唬One side is a self-adhesive layer and the opposite phase contains an acrylic adhesive layer. Moreover, the surface dynamic hardness of the self-adhesive # of the two-sided adhesive film for optical use is 〇.9mN/2. Further, the π, / 卞 structure surface (Ra) system is 0.04 μ m. Good, super film, b is 45 and the main line of view of the polarizer on the 80/z side of the degree is changed. In the case of the function of the example 2, the surface of the cover is 0205, which is the surface roughness of the cladding surface 201213887. The obtained separation film having the viewing angle enhancement work from the adhesive layer side is peeled off. On the surface of the TN type liquid crystal display device used in the embodiment, the main diffusion direction of the film is substantially horizontally adhered, and the viewing angle is improved and the front side is improved. The evaluation of the decrease in brightness was similar to that of Example 24 or Example 25, and the viewing angle improvement performance was excellent. Further, since the surface of the display screen is excellent in adhesion, it is not possible. For example, 'Even when passing a small amount of air, it will pass. Also, because the self-adhesive layer is recoverable, it can be pasted again. When it is temporarily removed, the residue is displayed and the contamination showing the image is not observed. The layer system is cushioned and has the advantage of protecting the display surface. [Industrial use possibility] The prisoner's viewing angle enhancement film has the characteristics of both transmittance and diffuse transmission, and can be effectively The reduction of the brightness of the viewing angle affects the wavelength dependence of the emission, and by providing the light-emitting side or the incident light side of the liquid crystal display, it is possible to satisfy the suppression effect of high-productivity and front-side brightness reduction. The effect and the front liquid crystal display device, so for the lift liquid crystal:: : used. Further, in the liquid crystal display device, the positiveness of the image is reduced, and the contribution of the commercial value is significant. ^Enhanced protective film 24 or Example 25 The viewing angle is increased in the viewing angle. The viewing angle of the crucible in the horizontal direction is lifted. The air is adhered to the air by the self-adhesive layer, and the air is gradually removed. Not at all and 'because of the self-adhesive function. The function of the liquid crystal cell that has the straight forward light distribution pattern, the effect of suppressing the angle of the front surface, and the viewing angle of the liquid crystal cell, and the function of suppressing the effect is very improved. On the other hand, the industry is -69-201213887. Fig. 2 is a view showing an example of a preferred variable angle light distribution pattern which the viewing angle lifting film used in the present invention should have. [Main component symbol description] None. -70-

Claims (1)

201213887 VII. Patent application scope: - A kind of viewing angle lifting film, the mixture of soluble resin is melted and squeezed:: mutually non-phase film' is characterized by: , the viewing angle of the line is increased. The transmission ratio of degree == one light (1〇) ratio (13./1〇><100) is 〇 25~5. Further transmission 2. The total light transmittance of the light of 光线01"" as in the scope of the patent application is 79~95% 八长 3. If the patent application scope 帛1 or 2 is the viewing angle 楛The main diffusion film of light having a wavelength of 44 〇 nm, wherein the half value width is 18 degrees or less. 6 under-angle distribution pattern 4. As in any one of claims 丨 to 3, where at least one of the non-compatible resins is a lifting film 5, as in the scope of view of claim 4 Tree moonlight. Two kinds of polyolefin resins which are soluble resins. In view of the non-phase, the viewing angle lifting film of the fifth aspect of the patent application is selected from the group consisting of polyolefin-based trees & 'Rare resin and 7. As disclosed in claim 5 or 6 of the viewing angle enhancement film, at least one side of the viewing angle enhancement film, the adhesive layer of the octagonal base of the octagonal base resin contains Contains 8. In the scope of the patent application, items 1 to 7, the field of view 4 ** film, wherein the surface of the observer side of the viewing angle lifting film = at least one layer selected from hard coat, reduced reflection Layer and laminate layer. Function of the Japanese glare layer-71-201213887 9. A liquid crystal display device characterized in that the field of view of any one of claims 1 to 8 is set on the observer side of the liquid crystal cell of the liquid crystal display device An angle-lifting film. A liquid crystal display device is characterized in that a viewing angle lifting film according to any one of claims 1 to 7 is provided between a liquid crystal cell of a liquid crystal display device and a light source. 1. A liquid crystal display device according to claim 9 or 10, wherein the main diffusion direction of the viewing angle enhancement film is set in the horizontal direction of the liquid crystal display device. 12. The liquid crystal display device of claim 9 or 10, wherein the main diffusion direction of the viewing angle enhancement film is set in the vertical direction of the liquid crystal display device. A method for improving a viewing angle characteristic of a liquid crystal display device, comprising: a backlight source, a liquid crystal cell, and a liquid crystal display device provided on both surfaces of the liquid crystal cell, wherein the liquid crystal display device is disposed on both sides of the liquid crystal cell Any of the surfaces of the polarizer is used as a viewing angle lifting film according to any one of claims 1 to 7. 14. The method of improving the viewing angle characteristic of a liquid crystal display device according to claim 13 wherein the main diffusion direction of the viewing angle enhancement film is a horizontal direction of the display. 1 . The method of improving the viewing angle characteristic of a liquid crystal display device of claim 13 wherein the main diffusion direction of the viewing angle enhancement film is a vertical direction of the pupil plane. The method for improving the viewing angle characteristic of the liquid crystal display device according to any one of claims 13 to 15, wherein the viewing side of the viewing angle is increased on the viewing side of the viewing panel, and the layer is laminated. There is at least one functional layer selected from the group consisting of a hard coat layer, a light-reducing layer and an anti-glare layer. The π-type liquid crystal display device is characterized in that: using the method of improving the viewing angle characteristic of the γ shi shi 13 13 . . . 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 The polarizer laminate has a viewing angle enhancement film as disclosed in any one of claims 1 to 7. A polarizing plate characterized in that at least a layer of a functional layer selected from the group consisting of a hard coat layer, a light-reducing layer and an anti-glare layer is laminated on the surface of the film of the polarizing plate of the item of claim a. S 20. A protective film having a viewing angle enhancement function, characterized in that: one area of the viewing angle lifting film of any one of the claims 帛i to 7 has a self-adhesive layer. 21. A protective film having a viewing angle enhancement function according to claim 20, wherein the self-adhesive layer comprises a soft polymer. Further, U. The protective film having a viewing angle enhancement function according to the second or the second aspect of the patent application, wherein the pressure-sensitive adhesive layer comprising the self-adhesive layer on one side and the adhesive film on both sides of the pressure-sensitive adhesive layer is further provided. Surface, : layer is as in the scope of application for patents... Item: Viewing angle lifting film. 23. The protective film having a viewing angle enhancement function according to the scope of claims 2 to 22 T, wherein at least the layer 2 is self-coating, on the opposite side of the self-adhesive layer of the protective film having the viewing angle enhancement function The functional layer of the reflective layer and the anti-glare layer is reduced. -73- -3⁄4 - 201213887 24. A method of using a protective film having a viewing angle enhancement function, which is characterized in that it has a viewing angle enhancement function as in any one of claims 20 to 23. The film is detachably attached to the outermost surface of the liquid crystal display device. -74-