TW409196B - Transmission-type screen - Google Patents

Abstract

The transmission-type screen of the present invention comprises a first light diffusion layer (1) and a second light diffusion layer (2). The first light diffusion layer (1) contains a first substrate (1A) and a first light diffusion material (1B) therein of 20 to 50 weight % and has a thickness of 50 to 200 mu m. The difference in the refractive index between said first light diffusion material (1B) and said first substrate (1A) is 0.07 to 0.17. Said first light diffusion material (1B) consists of fine particulates of a weight average particle diameter of 1 to 12 mu m. The second light diffusion layer (2) contains a second substrate (2A) and a second light diffusion material (2B) therein of 0.1 to 10.0 weight % and has a thickness of 500 to 5000 mu m and a haziness value of 50 to 85%. Said second light diffusion material (2B) consists of fine particulates of a weight average particle diameter of 1 to 12 mu m.

Description

A7 B7 409196 V. Description of the invention (1) [Application fields in the industry] The present invention relates to an image display technology, especially to a transmissive screen, which is suitable for being used as a projection television or a micro-associated film reader. Screen. The transmissive screen of the present invention is most suitable for use in, for example, a liquid crystal (K hereinafter referred to as LCD) projector, or a microfilm viewer (K hereinafter referred to as DMD) projection, etc., and is subject to pixels formed in a matrix configuration. A transmissive screen on which an optical image on a light sphere of a display portion (that is, a pixel display portion is configured in an M matrix configuration) is projected. [Known technology] In the rear projection type projection television, it is required to observe a bright image from a wide angle range on the observation side. The screen used is widely spread in the horizontal direction, and Although the vertical direction is a bit narrower than the vertical direction, it should also be moderately diffused and have an anisotropic transmission screen in the field of vision. This type of transmissive screen is generally used on one or both sides of the screen, and is arranged side by side with two lenses extending in the vertical direction, and lies in this diffusion screen with light diffusivity. It further contains a light-diffusing material, and M causes a double-lens curtain panel that expands light in a horizontal direction by a double lens, and diffuses light to a certain extent in a vertical direction by a light-diffusing material. On the one hand, .M matrix pixel structures such as LCD or DMD have been widely used as projection projectors with transmission screens as projectors for their display and imaging equipment, and K replaces cathode ray tubes (hereinafter referred to as CRT). . This type of projector is not subject to the same ground as the CRT projector. -3- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)-: \ ^ ------- Order --------- line (please read the notes on the back before filling out this page) Printed by the Employees 'Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Employees' Cooperatives of the Ministry of Economics and Intellectual Property Bureau 409196 A7 B7 Explanation () Magnetic film series • It is a transmissive type that uses LCD or DMD as a projector on a computer display device such as a personal computer that has a lot of opportunities to observe the static surface. In the curtain, it is used in a relatively small area, such as a computer monitor, which needs to be observed at a relatively close position from 14 to 40 hours. Therefore, it has been required to have new performance. The Moire phenomenon caused by the interference between the periodic structure of the pixel and the double lens. ② To eliminate the speckle or flicker caused by the interference of the light diffusing material added inside the double lens to the cast light, Fine bumps on the screen surface The m-flare phenomenon of diffusing materials (hereinafter referred to as Min Shuo) * Furthermore, in recent years, it has been required to improve the conventional standard pattern array (hereinafter referred to as VGA) and super standard national array (hereinafter referred to as SVGA) Type arrays (hereinafter referred to as XGA), super-enhanced circular arrays (hereinafter referred to as SXGA), and then to the most advanced graphics arrays (referred to as T as UXGA) for high pixel count, etc., to perform clear analysis. For these performance requirements, the following countermeasures have been proposed not only for projector screens using LCDs or DMDs, but also for transmissive screens used in rear projection type projection S-view and the like. In the above item ①, what was proposed in Japanese Patent Application Laid-Open No. 62_ 2 3 62 86, Japanese Patent Application Laid-Open No. 3-186630, and Japanese Patent Application Laid-Open No. 7-117818¾ is to make the pitch of the projection pixel and the double lens In order to eliminate the moiré, the method proposed in JP 123342 and Tokaikai 2-212880 to eliminate the Moiré is to eliminate the Moire. Phenomenon. In this way, the -4 between the periodic structure of the dual lens and the pitch of the colored pixels-this paper size applies the Yin National Standard (CNS) A4 specification (210 X 297 mm) I —VI nn I —i I— --n I k ^ It n T1 1 i ft nn tf I ^^^^ 1 I 〈Please read the precautions on the back before filling this page) 409196 A7 B7 V. Description of the invention () (Please read the cautions on the back Please fill in this page for more details.) The Moire phenomenon caused by the relationship can be eliminated by making the pitch of the two to be the most appropriate. However, in the case of high pixel counts above XGA 鈒 or SXGA level, or to project to 14 Lam K 下 的 的 0. lam K 下 的 's smaller screen occasions of ~ 40 o'clock. The pixel pitch of the pixels constituting the projection screen will be very small, and to eliminate the Moire phenomenon, the pitch of the two lenses must be 0. lam K 下 的It is very thin, so there are problems that it is difficult to make a mold for such a lens, or the shape of the lens cannot be accurately printed, and the life of M and the mold is very short. In the above item ②, it is proposed in Japanese Patent Application Laid-Open No. 8-313865, US Patent No. 5675435, US Patent No. 3712707, and Japanese Patent Publication No. 55-12980 to increase the optical expansion layer by M Dividing or setting the density gradient of the light-expanding material in the thickness direction of the plate, etc., M seeks to reduce the speckle. Regarding item ③ above, it is disclosed in Japanese Patent Laid-Open No. 55-12980 that if a transmissive screen whose resolution is higher than that of human eyes (5 to 10 lines / mm) is required, The thickness of the diffusion layer is formed as a thin sheet at 100 w mK. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. However, in the above-mentioned conventional technologies, there is no one that can meet all the performance requirements of the above items ① to ③. In particular, the reduction of speckles in item (2) above and the high resolution of item (3) above generally have a relationship of decay. When the speckles are reduced, the resolution is reduced, and when the resolution is increased, the speckles become very obvious. . For example, in Japanese Patent Application Laid-Open No. 8-3 13865, the speckle can be reduced by dividing the light diffusion layer so that the distance from the incident surface of the first light diffusion layer to the exit surface of the second light diffusion layer is 1.55 mfflK. However, in the case of high pixel counts of XGA or SXGA grade M, the resolution will be -5-this paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm), and is consumed by employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the cooperative 409196 A7 _B7_ V. Description of the invention (4) The reduction does not provide a high-resolution projection image. In addition, when the thickness of the expansion layer is set to 100w mM in JP 55-12980, a high-resolution projected image can be obtained, but obvious speckles are generated, and high-quality Projected image. On the one hand, the light-diffusing sheet used for such transmissive screens and the like is generally used in thin sheets formed of methacrylic resin or polycarbonate resin, and contains dispersed inorganic or organic Department of light expansion material. The conditions required for a light diffusing material are that it can improve the light diffusivity of a light diffusing plate or a transmissive screen, has high light transmittance to all light, has excellent light utilization efficiency, and suitability for color temperature, and, Light source images, cathode ray tubes, liquid crystal projectors and other light source images will not be seen through the observation because they are too transparent, or some dense bands of band-shaped bright parts will be observed. As the light diffusing material, for example, an inorganic light diffusing material such as silica, muscovite, alumina powder, calcium carbonate, and glass beads described in Japanese Patent Application Laid-Open No. 60-46503 is used. Resin beads made of acrylic resin, polystyrene resin, and the like described in Japanese Patent Publication No. 61-4762. In addition, for the purpose of achieving a balance between light transmittance and light diffusivity, M has been proposed as described in Japanese Patent Application Laid-Open No. 1-178801, and a solid state having a polysilicone content of 0.3 to 10 w A diffusion material composed of spherical silicone resin, a light diffusion plate dispersed in a transparent resin; the paper standard of JP-A flat paper applies the national standard (CNS) A4 specification (210 X 297 mm); 7 ----- --- 'JJ ----.--- Order --------- line (please read the notes on the back before filling this page) 409196 A7 __B7_ V. Description of the invention (5) 2-194058 A light-diffusing synthetic resin in which a silicone resin fine particle and an inorganic transparent powder of 1 to 6 mm are dispersed in a transparent synthetic resin, as described in g. No. Hei 3-207743, a methacrylic resin A resin molded body composed of 0.5 to 20w η > of polymethylsilsesquioxane; described in Japanese Patent Application Laid-Open No. 5-394 01, which is composed of a methacrylic resin and a spherical silicone resin having a phenyl group. Light-expandable resin composition; described in Japanese Patent Application Laid-Open No. 6-107881, consisting of methacrylic resin and methacrylic acid The light-diffusing resin composed of acrylate resin interspersed with polymer fine particles and 1 to 20 // π silicon fine particles is described in Japanese Patent Application Laid-Open No. 6-192556, which is composed of a polycarbonate resin and a polymethylsilyl resin. A light diffusing resin composition composed of a silsesquioxane; as described in Japanese Patent Application Laid-Open No. 7-207101, a liquid polysiloxane is divided into a polymer mainly composed of methyl methacrylate. Light diffusing resin composition; and a light diffusing resin composition composed of acrylic resin and silicone rubber powder described in Japanese Patent Application Laid-Open No. 10-87941; A light diffusing plate or composition of a light diffusing material. [Problems to be Solved by the Invention] However, an inorganic fluorescein light-diffusing material such as glass beads described in Japanese Patent Application Laid-Open No. 60-46503, or a high-hardness silicone resin-containing material described in Japanese Patent Application Laid-Open No. 1-178801. Light diffusivity of the formed light diffusing material 丨 ~ ·-··· ***. _... In the board, the strength of the transparent resin as a base material! The problem of f reduction, especially when it is used as a light diffusion layer of a transmissive screen with relatively high resolution requirements, its thickness should be as thin as about 1.5nm, and the light -7- this paper size applies Chinese national standards (CNS) A4 specification (210 X 297 mm) (Please read the notes on the back before filling this page) ^ -----.--- Order ------ J! Line. Intellectual Property of the Ministry of Economic Affairs Printed by the Bureau ’s Consumer Cooperative Cooperative, printed by the Intellectual Property Bureau ’s Employees ’Cooperative Cooperative, 409m A7 _B7_ V. Description of the Invention (6) The thinner the thickness of the diffusion layer, the more the amount of light diffusing material added to obtain a wide viewing angle. When a large amount of light diffusing material is contained in such a thin light diffusing layer, it will be difficult to manufacture, and the handling during assembly is poor during transportation, and there will be Problems such as breakage easily occur due to external impacts. In addition, when using a resin containing a light diffusing material to form a light diffusing plate by κ extrusion molding, it is easy to accumulate resin in the portion of the extrusion die where the resin is to be ejected (front edge of the ejection opening), and the light diffusing plate contacts the accumulated resin Later, it is easy to produce appearance defects, so there is a problem that it is difficult to make good products for a long time. Further, as described in Japanese Patent Application Laid-Open No. 10-874941, the use of a rubber silicone light-emitting diffusing material can suppress the reduction of the impact strength of the light-diffusing sheet or the appearance of defects to some extent. When a rubber-like light diffusing material is used, rubber-like particles have a significant agglomeration phenomenon, and the problem is that the dispersibility in the resin of the base material is poor. The object of the present invention is to provide a transmissive screen which is capable of obtaining a high-resolution and high-quality projection image with almost no moire fringes when used in combination with a liquid crystal projector or the like, and has a sufficient width. Viewing angle and transmission screen with excellent impact resistance and light transmission. [Means for Solving the Invention] The transmissive screen according to the first invention of the present invention is a transmissive screen that is projected by an optical image formed on a light sphere formed in a pixel display portion with a matrix arrangement. For: at least the first light diffusing layer and the second light diffusing chirp; and the first light diffusing layer is made of translucent resin-8- This paper size applies Chinese National Standard (CNS) A4 (210 X 297) %)

Ji I ----- II. ^ Γ --- · 1 — — Order --------- VT (Please read the notes on the back before filling this page> A7 409196 B7_ V. Description of the invention (7) The first base material contains 20 to 50% by weight of the first base material. The refractive index difference between the first base material and the first base material is 0.07 to 0.17, and the weight average particle diameter is 1 to 12u a. 1 A light diffusing material having a thickness of 50 to 200 wm; the second light diffusing layer is made of a second light diffusing material containing fine particles having a weight average particle diameter of 1 to m in a translucent resin, and The thickness is 500 to 5000 wm; and the turbidity of the second light-expanding layer is 50 to 85. The transmission type screen of the second invention of the present invention is a screen which is subjected to A transmissive screen projected by an optical image on a light sphere of a pixel display portion arranged in a matrix is characterized by having at least a first light diffusion layer and a second light diffusion layer; and the first light diffusion layer is formed by The first base material of the light-transmitting resin contains 20 to 50 wt% of fluorene, and the refractive index difference between the first base material and the first base material is 0. 〇7〜〇. 1 7, The first light diffusing material of light-transmitting fine particles having a weight-average particle diameter of 1 to 12x / in, and a thickness of 50 to 200 wm; and the second light diffusing layer is composed of 2 The base material is composed of a second light diffusing material containing 0.1 to 10.0% by weight of fine particles having a weight average particle diameter of 1 to 12 am, and having a thickness of 500 to 5000 wb. The transmissive screen of the three inventions is a transmissive screen that accepts an optical image projected by the projection light, and is characterized in that: a polarizing degree of 96 ¾ is arranged between the first light diffusing layer and the second light diffusing layer; The polarizing film layer on M, and these first light diffusing layer, polarizing chirped layer, and second light-expanding layer are laminated. In addition, the transmission type screen of the fourth invention of the present invention is -This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm). J Wood: ----.--- Order --------- line (Please read the note on the back first Please fill in this page for further information) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 409196 A7 ___B7 V. Description of Invention (8) 'Astigmatism The tB and p \ n «H trees in the circle division study are transparent in this part: with the display of its manifestation, the quality of the special image, and the thick curtain 2 Screen / IB-shaped type ogsm-6 with m in shadow g / Chengtou 10 QC ί ~ layer 1 scattered as the diameter of the son of light straight min grain 2 all 1 flat 3 product ο body, degree thick Its 05 and ο * is the difference between the material and the material, and the diffused and diffused film is a light-emitting device of the screen-type transmission. The second is the Mingfa version. »The other layer is to receive the material by the receiving party. It is %%, and 96 light is especially transparent, and the light-type curtain polarizing screen has a light-type polarizing film and an astigmatism layer of the interstitial layer. The expansion material optically plasticizes some of this light. The photoresistance of the layered layer of light and astigmatism is widened, and the projection and projection of the silicon are accumulated: awe contains the enveloping appearance of the apical penetrating tree of the M-screen-type layer. Table 6 The micro-layered tees are laminated with rubber quilts, and the rubber system is also ketone ϋ ο 乂 8 乂 1 MU. The diameter is covered by straight quilts. The grains are uniformly expanded. The grains are coated and scattered.

The strong 2 fields / S ο ο 1X is the difference. The shooter ’s folding of the proton scatter particles expands the light-shaped ball into 0. Example implementation of the ketolipid silicone tree in the structure of the rubber (please read the precautions on the back before filling this page). It was defeated by MV vf 6 points ο Λ ---- * --- Order -------- '' printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The original Ming Ming said, 2 sides of the figure and lighting # ^ Τ ^ Μ The first example of the example of the transmission through the actual Mingfa 2nd item and I—I of the Mingfa is a picture phase is layered Spread 2nd and 11th. The layered image is divided into 1 part, and the pattern is divided into 1 part, and the pattern is in the mold. 1 screen and screen type. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) A7 409196 __B7_ V. Description of the invention (9) Bonded laminate. The first light diffusing layer 1 is one in which a first light diffusing material 1B is contained in a first base material 1A of a translucent resin. The second light diffusing layer 2 is one in which the second light diffusing material 2B is contained in the second base material 2A of the translucent resin. When the transmissive screen of the present invention having such a configuration is used, when an optical image formed on a light sphere formed in a pixel display section with a matrix bark arrangement is projected from a liquid crystal projector, a DMD projector, or the like, it is hardly necessary. Moire fringes or specks are generated, with a wide viewing angle, and a high-resolution and high-quality projection image can be obtained at a low cost. Here, the resolution of the transmissive screen will be briefly explained. In general, the resolution of a transmissive screen is represented by the value of the K-modulation transfer function (hereinafter referred to as MTF), which is a pair of white and black lines alternately arranged (the number of line pairs per 1 tn m [lp / mm] indicates its thickness > rectangular grid pattern in flail configuration. The resolution of the transmissive screen of the present invention can be high pixels on XGA level or SXG A level M, or 14 to 40 hours. In the small transmission type screen, it can be seen that this MTF value is, for example, about 1 2 ίK at 4 [lp / mm]. The first base material 1 / \ and the second base material A2 are acrylic. Translucent thermoplastic resins such as resins, styrene resins, polycarbonate resins, polymethylpentene resins, and methyl methacrylate / styrene copolymer resins. Among them, it is used as a photosphere. When LCD is used in combination, it is ideal to use acrylic resin with small birefringence that will not reduce the polarizing characteristics of LCD. It is also preferable to use acrylic resin in terms of high impact resistance. 1 Base material 1A and -11- This paper size applies to China Standard (CNS) A4 (210x297 mm) (Please read the notes on the back before filling out this page) T ---- ^ —— Order --------- line. Staff of Intellectual Property Bureau, Ministry of Economic Affairs Printed by a consumer cooperative. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs. Printed by a consumer cooperative. 409196 A7 _B7_ V. Description of the invention (1Q) '' The second base material 2A can be composed of different resins, but in order to prevent different characteristics based on different materials When warping or peeling occurs, the first base material 1A and the second base material 2A are preferably composed of the same resin. The first light diffusing material 1B and the second light diffusing material 2B can be made of silica, Those made of inorganic materials such as aluminum oxide powder and glass beads, or those made of organic materials such as acrylic resins, vinyl resins, and silicone resins (especially those that have undergone cross-linking are preferred). 1 light diffusion layer 1 or second light diffusion layer 2. In order to prevent the first light diffusion material 1B from settling in the first base material 1A, or the second light diffusion material 2B to settle in the second base material 2A, When κ improves the dispersion uniformity of the light diffusing material, its specific gravity is close to The base material is ideal. The shape of the first light diffusing material 1B and the second light diffusing material 2B can be formed into an irregular shape, a spherical shape, a flat shape, and a spheroid shape. If it is to be used with a photosphere such as an LCD that uses polarized light, K is preferably a spherical shape that can reduce the polarizing characteristics of the LCD (such as the degree of polarization P described later). The first light diffusing material 1B and the second The particle diameter of the light-expanding material 2B must be in the range of weight-average particle diameter from 1 to 12 wm. If the weight-average particle diameter of the light-diffusing material is less than Ιϋΐπ, the transmitted light will be colored yellow due to scattering or transparent. On the other hand, if the weight average particle diameter exceeds 12 Win, the required amount of addition will be too much to obtain the desired light diffusivity, which will cause difficulties in the manufacture or processing of the film, and , The strength of the film tends to decrease -12- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -----, clothing. Γ II 1 '----order -IIII ---, V (Please read the note on the back first And then fill in this item 1-) Ministry of Economic Affairs Intellectual Property Office employees consumer cooperatives printed 409196 a7 _B7_ V. Description (11) invention 'of it. A more preferable range of the weight-average particle diameter of the light diffusing material is 2 to 10 wm. The difference in refractive index Δη between the first light diffusing material 1B and the first base material 1A contained in the first light diffusing layer 1 must be in the range of 0.07 to 0.17. This is the refractive index difference of the first light diffusing material 1B. If the refractive index difference is less than 0.07, the light diffusivity will be too weak, and the viewing angle will be very narrow. To obtain the desired light diffusion, the required amount of addition will be too much. Difficulties arise in the manufacture or handling of the film, and the strength of the film tends to decrease. The refractive index of the general polymer used in the first base material 1A or the first light diffusion material 1B is 1.59, which is higher, such as polycarbonate resin or styrene resin, and lower, which is, such as silicone resin. 1.42. When these are used in combination as a base material and a light diffusing material, the maximum difference in refractive index is about 0.17, and ideally, it is at 0.15M. In addition, the first light diffusing material 1B is contained in the first light diffusing layer 1A in a range of 20 to 50 wt. SK. This is the first light diffusing material 1B containing less than 20% by weight of light. It will be too weak, and there will be a tendency to fail to obtain a sufficient viewing angle. If it exceeds 50 weights, the light diffusivity will be too strong, the total light transmittance will decrease, or it will cause difficulties in the manufacture or processing of the film as described above. And the strength of the produced film tends to decrease. The content of the first light diffusing material 1B is preferably 25 to 45% by weight. The thickness T1 of the first light diffusion layer 1 must be 50 to 200 // b. This is like when T1 is less than 50 / itn, the strength will decrease. To obtain the desired light diffusivity, it will be difficult to add 20 weight XK light diffusing material. 13- This paper scale meets China Standard (CNS) A4 specification (210 X 297 mm) .--- Ί i -------- ^ ----.- if ^. I ---- I-- (Please read the back first Please pay attention to this page and fill in this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 409196 A7 B7 V. Invention Description (发明) 'If the T1 exceeds 200Wm, the resolution of the transmissive screen will tend to decrease. The thickness T1 of the first light diffusion layer 1 is preferably in a range of 50 to 150 / im, and more preferably in a range of 55 to 100 wm. The second light diffusion layer 2 contains a second light diffusion material 2B in the range of 0.1 to 10 weight Si. When the second light diffusing material 2B is contained in this range, the haze (Haze value) of the second light diffusing layer 2 can be in the range of 50 to 85¾. The ideal value of the turbidity of the second light diffusion layer 2 is in the range of 55 to 80¾, and more preferably in the range of 57 to 75%. If the content of the second light diffusing material 2B is less than 0.1% by weight S, or when the turbidity of the second light diffusing layer 2 is less than 50¾, there may be cases where the speckle cannot be sufficiently eliminated. When the addition amount of the second light diffusion material 2B exceeds 10 wt. 3S, or when the turbidity of the second light diffusion layer 2 exceeds 85 °, the resolution of the transmissive screen tends to decrease. The ideal content of the second light diffusing material 2B is in the range of 0.5 to 7 weight S :, more preferably in the range of 1 to 5% by weight. The refractive index difference Δη between the second light diffusing material 2B and the second base material 2A contained in the second light diffusing layer 2 is not particularly limited, but it is preferably 0.01 to 0.1. The thickness T2 of the second light diffusion layer 2 must be in the range of 500 to 5000 // η. This is because if T2 is less than 500um, there will be a tendency to produce speckles or the intensity of the screen will decrease. When T2 exceeds 5000 w m, the resolution of the transmissive screen tends to decrease. In the present invention, by setting the thickness T2 of the second light diffusion layer 2 to 500 to 5000 wm, it is possible to eliminate speckles that are difficult to remove only by the first light diffusion layer 1, and to maintain the shape and strength that the screen should have. The ideal range for the thickness T2 of the second light diffusing layer 2 is -14. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). Ϊ́ I ----- II ^-Γ II 1 'I ---------- (Please read the notes on the back before filling this page) A7 409196 __B7_ V. Description of the invention (13) '' (Please read the notes on the back before filling this page) 600 ~ 4000w m, more preferably in the range of 700 ~ 300wm. For the purpose of increasing the strength of a transmissive screen, it may be integrated with another translucent plastic film or sheet. In the present invention, a transmissive screen may be arranged with the first light diffusion layer 1 side as the light source side and the second light diffusion layer 2 side as the observation side, and the second light diffusion layer 2 side may be used as the light source side. A light-transmitting screen is arranged on the light-diffusion layer 1 side as the observation side. However, it is desirable to arrange the second light diffusing layer 2 side on the observation side of the transmissive screen (the examples in M are the same). Next, referring to Figs. 2 to 5, the first invention and the second invention of the present invention, which are different from the real cell example 1 shown in Fig. 1, will be described with reference to Figs. 2 to 5. In Figures 2 to 5, parts with the same functions as those in the first circle are given the same symbols. • Example 2 The example printed in Figure 2 by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs is a linear Fichler lens formed on the surface of the first light diffusion layer 1 on the side opposite to the second light diffusion layer 2. 3. In this case, the first light diffusion layer 1 side is used as the light source side, and the second light diffusion layer 2 side is used as the observation side. It is preferable to arrange the transmission screen. By forming the linear Fresnel lens 3 on the side surface of the light source in this way, the light-concentrating characteristics can be imparted in the horizontal direction, and when the image is viewed from an oblique direction, the brightness distribution on the entire surface can be uniformized. Also, a linear Fresnel lens 3 may be formed on the surface of the second light diffusion layer 2 on the side opposite to the first light diffusion layer 1. With this structure, the second light diffusion layer 2 is formed. The side is used as the light source side, and the first side of the first light diffusion layer is used as the observation side. 1 5-This paper size applies the Chinese National Standard (CNS) A4 specification (210x 297 mm) A7 B7 409196 V. Description of the invention (14), It is ideal to configure a transmissive screen. This method of imparting the shape of a Fresnel lens to the surface of a transmissive screen can be made by a well-known technique such as compression molding or light curing molding of an active energy ray hardened composition such as ultraviolet rays. • Example 3 In the third sink example, a linear Fresnel lens 4 is bonded to the surface of the first light diffusion layer 1 on the side opposite to the second light diffusion layer 2 (light source side). With this structure, the same functions and effects as those of the second embodiment in Fig. 2 can be obtained. In addition, a linear Fresnel mirror Η4 may be bonded to the surface of the second light diffusion layer 2 on the side opposite to the first charge diffusion layer 1. In the structure of M, the second light diffusion layer 2 side is used as For the light source side and the first light diffusion layer 1 side as the observation side, it is preferable to arrange a transmissive screen. • Embodiment 4 The embodiment shown in FIG. 4 is one in which a light-transmitting plastic layer 5 is interposed between the first light diffusion layer 1 and the second light diffusion layer 2. This translucent plastic layer 5 is the same resin as the first base material 1A constituting the first light diffusion layer 1 or the second base material 2A constituting the second light diffusion layer 2. Alternatively, an air layer K may be provided instead of the light-transmitting plastic layer. The thickness 5 of the translucent plastic layer 5 is preferably 100 to 1000 / ^ «1 Fanyuan. By sandwiching the light-transmitting plastic layer 5 in this way, the effect of removing speckles can be enhanced, and if the second light diffusion layer 2 is too thin, the transmission screen can be made rigid. • Embodiment 5 The embodiment in FIG. 5 is composed of the first light diffusion layer 1 and the second light -16- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (Please read the back first Please note this page before filling out this page) Ά. T ---- · --- II 1 I 1 II it. Printed by the Employees 'Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by 409196 a7 _B7_ 5 Description of the invention (15) A polarizing film layer 6 is formed on one surface of the daylight layer body of the diffusion layer 2 (the surface of the second light diffusion layer 2 on the side opposite to the first light diffusion layer 1). In this structure, the side of the first light diffusing layer 1 is used as the light source side, and the side of the polarizing film layer 6 is used as the observation side. It is preferable to arrange a transmissive screen. When the polarizing film layer 6 is provided in this way, the loss of the projection light can be minimized, and when it is used with a light source such as an LCD projector that projects optical images with polarized projection light, the display performance is not damaged. , Effectively suppresses the decrease in contrast caused by external light and shadow. The polarization transmission sleeve (polarization direction of light transmitted through the polarizing film layer) of the polarizing P layer 6 is preferably aligned (parallel) with the polarization axis (direction of polarization) of the projection light from the light source. The polarizing film layer 6 can be made of iodine dysprosium or dye dysprosium generally used. The performance and characteristics of the polarizing film are generally expressed as > 乂 transmittance and polarization degree of the monomer, but in the transmissive screen of the present invention, the black stripe is not used like the ordinary transmissive screen. Forming M increases the contrast. Therefore, in order to increase the contrast, the polarizing film layer 6 is preferably one having a polarization degree of 96¾ M. This is because if the polarization degree of the polarizing film is less than 96¾, the improvement effect of the contrast ratio of the transmissive screen tends to decrease. The more desirable polarization degree of the polarizing film is 97¾ or more, and the more desirable is 99¾M. . In the present invention, for example, at least one of the first light diffusion layer 1, the second light diffusion layer 2, and the light-transmitting plastic layer 5 contains 50 to 200 ppm (parts per million > , Such as carbon black or neodymium pigments or dyes and other light absorbers, can provide more contrast. Also, in the above -17- this paper size applies Chinese National Standard (CNS) A4 specifications (210 X 297 mm ） Ί — iT-I — llll--Ά · ί ------- Order ----- I--I «. ^ {Please read the precautions on the back before filling this page) 409196 A7 B7_ V. Description of the invention (16) '(Please read the precautions on the back before filling out this page) At least one side of one of the various types of transmissive screens, and preferably on the surface on the observation side to prevent reflection Layer, M prevents the reflection of external light, and thus can suppress the decrease in contrast caused by external light. The antireflection layer can be formed directly on the surface of the laminated body by vapor deposition or coating of an inorganic material, or an antireflection layer can be formed in advance on the surface of the triethylsulfonyl divinin chip with a small refractive index. The prepared anti-reflection film may be attached to the surface of a transmissive screen. It is also possible to form a non-glare layer or a non-glare surface, and M seeks to prevent the reflection layer. No .: ¾ top invention example • Embodiment 6 FIG. 6 is a partial cross-sectional view of a transmission type screen constituting mode of the third invention embodiment of the present invention. In Fig. 6, the first light diffusion layer 7 and the light diffusion layer 11 and the polarizing film 9 sandwiched between the two layers are formed by stacking. Between the first light diffusing layer 7 and the polarizing chirped layer 9 and between the polarizing film layer 9 and the second light diffusing layer 11, each of the M adhesive layers 8 and 10 is adhered, and the adhesive layers 8 and 10 make the first 1 The light diffusion layer 7 and the polarizing film layer 9K and the light diffusion layer 11 are integrated. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs In the present invention, the first light diffusion layer 7, the polarizing film layer 9, and the second light expansion failure layer 11 do not have to be glued together. Objects are overlapped, or any one of the first light diffusion layer 7 and the second light diffusion layer 11 is bonded to the polarizing film layer 9 to integrate them, and then another light diffusion layer is superposed thereon, To be stacked. The first light-expanding layer 7 is the first base material 7A of the translucent resin. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) A7 B7 409196 V. Description of the invention (17) It includes a first light diffusing material 7B having a refractive index different from that of the first base material 7A. The second light-expanding layer 11 is also composed of a second base material 11A of a light-transmitting resin and a second light-diffusing material 11B having a refractive index different from that of the second base material 11A. The first base material 7A and the second base material 11A are made of the same light-transmitting thermoplastic resin as the first base material 1A and the second base material 2A used in Examples of the first invention and the second invention described above. Is ideal. The first base material 7A and the second base material 11A are preferably made of a K-phase resin. This is because when the first light-expanding layer 7 and the second light-diffusing layer 11M are made of the same resin as the base material adhered to both sides of the polarizing film layer 9, it can effectively suppress the environmental changes caused by temperature and humidity. Warp and other distortions of the transmissive screen can maintain high reliability. The first light-diffusing material 7B and the second light-diffusing material 11B are also the same as the first light-diffusing material 1B and the second light-diffusing material 2B used in the examples of the first invention and the second invention described above. Ideal for light diffusing materials. That is, the first light diffusing layer 7 and the second light diffusing layer 11 are light diffusing layers that can be used in the same manner as the first and second inventions, but the thickness of the second light diffusing layer 1 is T11. It is preferably 500 to 120 (111). The polarizing film layer 9 uses the same polarizing film as the first and second embodiments of the invention. For example, an LCD having a polarizing axis between specific sides is used. The light ball, when projecting the projection light, it is desirable to make the polarization transmission axis direction of the polarized light shield 9 consistent with the polarization axis direction of the projection light from the light ball. -19- This paper size is in accordance with China Zhoujia Standard (CNS) A4 specification (210 X 297 male 1) < Please read the notes on the back before filling out this page) ^ U -------- Order --------- 'Printed by A7 B7 409196, Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs Description of the invention (18) '(Please read the precautions on the back before filling out this page) The adhesion of the polarizing film layer 9 to the first light diffusing film 7 and the second light diffusing layer 11 may be in advance on both sides of the polarizing film layer 9 A transparent adhesive layer is formed, or a transparent adhesive layer is formed in advance on one side of the first light expansion calendar 7 and one side of the second light diffusion layer 11 in order to easily adhere. In addition, the material of the adhesive is not particularly limited as long as it can adhere to the surfaces of the two sides to be adhered and is translucent. It can be colored or colorless. For example, pressure-sensitive adhesives and water can be used.糸 Adhesives, UV-type adhesives, etc. The thicknesses T8 and T10 of the adhesion 8 and Ί0 are preferably, for example, about 5 to 50 degrees. In the present invention, the distance (T7 + T8 + T9 + T10 + T11) from the surface of the first light diffusion layer 7 to the surface of the second light diffusion layer 11 is preferably less than 1.5 mm. It is found that in order to obtain a projected image with good resolution, it is necessary to set the value of the transmissive screen to 2S; M. Therefore, the surface of the first light diffusion layer 7 to the surface of the second light diffusion layer 11 The distance 雔 is less than 1.5mm, and a high-resolution projection image can be obtained. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs In the present invention, the first light diffusion layer? The side is used as a light source, and the second light diffusion layer 11 side is arranged as a viewing side, and a transmissive screen can be arranged. The second light diffusion layer 11 side can be arranged as a light source side, and the first light diffusion layer side can be arranged as a viewing side. screen. However, if the second light diffusing layer 11 side is used as the observation side, the effect of improving the contrast of the polarizing film layer 9 can be improved, which is ideal. In the following, with reference to Figs. 7 to 9, description will be made of another drag example of the third invention other than the cell example 6 of Fig. 6 described above. In Figs. 7 to 9, parts having the same functions as those in Fig. 6 are given the same reference numerals. -2 0-This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) A7 409196 B7_ V. Description of the invention (19) • Example 7 (Please read the notes on the back before filling this page) In the example of FIG. 7, on the surface of the second light diffusion layer 1 opposite to the polarizing film layer 9 (the observation side), there is a layer ® that becomes an integrated transparent plastic layer 12. The translucent plastic layer 12 is made of a translucent plastic base material 12A, does not contain a light diffusing material, and has a thickness T12 of about 500 to 1000 μm. The material of the translucent base material 12A may be different from that of the first base material 7A and the second base material UA, but in order to prevent warping or peeling caused by the difference of the base materials, it is necessary to make it the same as the first base material. The base material 7A and the second base material 11A are preferably made of the same resin. Since the translucent plastic layer 12 containing no light diffusing material is laminated, the rigidity of the transmissive screen can be improved without reducing the resolution of the transmissive screen. When the light-transmitting plastic layer 12 contains a light absorber such as carbon black or a neodymium compound or a dye such as 50 to 200 PPB1, the contrast of the transmissive screen can be further enhanced. The transparent material layer 12 and the second light diffusing layer 11 may be bonded together by an adhesive or hot-press molding, or a co-extrusion method. Printed by the Employees ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs • Example 8 The example in FIG. 8 is a linear Fresnel formed on the surface of the first light diffusion layer 7 on the side opposite to the polarizing film layer 9 (light source side). Lens 7C. By setting the linear Fresnel lens 7C on the light source side in this way, it is possible to impart a focusing characteristic in its horizontal direction, and it is also possible to make the brightness distribution over the entire surface uniform when observing the image from an oblique direction. In addition, when the structure of K is used, it will be the first to the 21st of this paper. The paper size is in accordance with the Chinese National Standard (CNS) A4 (210 X 297 mm) A7 409196 B7_ V. Description of the invention (2 ()) (please first (Please read the notes on the back side and fill in this page again.) It is ideal to arrange a transmissive screen with the 7th side of the optical expansion layer as the light source side and the second light diffusion layer 11 side as the observation side. In addition, a linear Fresnel lens may be formed on the surface of the second light diffusion layer 11 on the side opposite to the polarizing film layer 9. In this structure, the second light diffusion layer 11 side is used as a light source. On the side, the first light-expansion layer 7 side is used as the observation side, and a transmissive screen is preferably arranged. • Ranunculus Example 9 The example in FIG. 9 is a case where the linear Fresnel lens 21 is bonded to the surface of the first light diffusion layer 7 on the side opposite to the polarizing film layer 9 (light source side). When M is configured in this way, it has the same function and effect as the eighth embodiment of FIG. 8 described above. Conversely, a linear Fresnel lens 21 may be bonded to the surface of the second light diffusion layer 11 on the side opposite to the polarizing film layer 9. With this structure, it is preferable to arrange the transmissive screen by using the second light diffusion layer 11 side as the light source side and the first light diffusion layer 7 side as the observation side. Also, in the embodiments 6 to 9 shown in Figs. 6 to 9, similarly to the above-mentioned embodiments of the first invention and the second invention, an anti-reflection layer can be formed on at least one surface of the transmissive screen. In addition, at least one of the first light diffusing layer 7, the second light diffusing layer 11, and the light-transmitting plastic layer 12 may be printed in the printed layer of the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs to contain the light as described above. Absorbent. Example of the fourth top invention Example 10 of the cell example Figure 10 is a cross-sectional view of a light diffusion layer constituting a transmission screen in the fourth hair of the present invention. This paper size is applicable to the National Standard (CNS) A4 specification (210 X 297 mm) 409196 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention () The light diffusion layer 13 contains 10 ~ 60s / m2, a light diffusing material 13B having a refractive index difference between the transparent resin (translucent resin) 13A and the transparent resin (transparent resin) 13A constituting the light-expanding layer 13 of 0.05 K, and a volume average particle diameter of 1 to 8 nm. When a transmissive screen is formed with such a specific light diffusing layer 13, it is possible to prevent speckles from occurring without reducing the resolution of the projected image. The transparent resin 13A is a thermoplastic resin having the same light transmittance as the first base material 1A and the second base material 2A in the examples of the first invention and the second invention. In addition, the light diffusing material 13B contained in the light diffusing layer 13 can also be appropriately selected and used as the first light diffusing material 1A and the second light diffusing material 2B in the example S of the first and second inventions. The same light diffusing material. The fourth invention of the present invention is different from the above-mentioned first to third inventions in that the light diffusion layer 13 has only a fluorene layer. The volume average particle diameter of the light diffusing material 13B must be in the range of 1 to Sum. When the volume average particle diameter of the light diffusing material 13B is less than lwm, the transmitted light tends to be colored or yellow or transparent due to scattering. On the contrary, if the volume average particle diameter exceeds 8 «®, the light The diffusivity will be reduced, and a sufficient viewing angle cannot be obtained. Moreover, in order to obtain the desired light diffusivity, the required amount of addition will be too much, and the intensity of the light diffusion layer 13 itself will be reduced, and the light expansion failure layer 13 will It is difficult to manufacture, and the resolution of the projected image tends to decrease. The ideal range of the volume average particle diameter of the light diffusing layer 13 is in the range of 2 to 6 wib, and more preferably in the range of _2.5 to 5 «m. Also, in the fourth invention, a single-layer light diffusing layer 13 is used to construct the 23rd paper.- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (please read the note on the back first) Please fill in this page for more details.) Clothing f ---.---- Order --------- 、 409196 A7 B7_ V. Description of the invention (22) It is a transmissive screen. Therefore, in the light diffusion layer 13, The refractive index difference Δη between the light diffusing material 13B and the transparent resin 13A must be set to 0.05M. (Please read the precautions on the back before filling this page.) This is because if the refractive index difference Δη is less than 0.05, the light diffusivity will be reduced and the viewing angle will be too narrow. The added amount will be too much, which will reduce the strength of the light diffusion layer 13 itself, cause difficulties in the manufacture or processing of the light diffusion layer 13, and tend to reduce the resolution of the projected image. On the one hand, among the polymers used for the transparent resin 13A and the light diffusing material 13B, the higher refractive index is about 1.59, such as polycarbonate resin or stupid vinyl resin, and the lower is 1.42, such as silicone resin. Therefore, when these resins are used in combination as the transparent resin 13A and the light diffusing material 13B, the refractive index difference Δη may be at most about 0.17, but it is preferably lower than 0.15M. The ideal range of the refractive index difference Δη between the light diffusion layer 13A and the transparent resin 13B is from 0.05 to 0.15, and more preferably from 0.06 to 0.1. The content of the light diffusing material 13B contained in the light diffusing layer 13 must be in the range of 10 to 60 g / m2, and the thickness T13 of the light diffusing layer 13 must be in the range of 0.3 to 1.2 mm. When the content of the printed expanded material 13B printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is less than 10 g / tn2, the light diffusivity will decrease, a sufficient angle of view cannot be obtained, and the resolution of the projected image will decrease. The tendency. When the content of the light diffusing material 13B exceeds 60 g / m2, the light diffusivity will be too strong, the total light transmittance will be reduced, or the strength of the light diffusing layer 13 itself will be reduced, and the light expanding layer 13 will be manufactured. Difficulties arise and the resolution of the projected image tends to decrease. The ideal range of light-expanding materials containing children is 10 ~ 50g / n2, and this paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 409196 A7 B7 V. Description of the invention (23) In the range of 10 ~ 45g / n2, when the light B is printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, the division of the olives should be divided into convex ^ 35, point 21 into a sample range, C into a part shape, and the light direction is «concave. 〕 0. Hour 1. Imagination of the imaginary body I when I come comes with a thin angle of light in the screen. The model panel is rational. The screen of the 13 scenes is screened from the tilt. The 1B surface of the screen is as thin as the source. The layer screen is in a tilted fi 5 type as. Type 3 7 The light-scattering type screen light in the normal case wants to shoot 3 to T10. In the near-diffusion mode, the external light is flattened through the UT1 penetrating degree i to increase the transmission by light. The thickness of the chastity is 35, which is the thickness of the low-level layer made by the most inverse transmission of film. The method of making can be fine, but the height of the shape of 31η can be raised in the sand. The rough surface layer 0.13 has an enlarged layer and is sprayed with a concave surface. The surface of the table that can be produced by the Risen pain layer will be scattered. The 13 sheets are thin and thin, and the sheet is expanded or unfolded. The surface of the surface is like the expansion analysis. 13 This thin, scattered light-shaped view will take 3 photolysis 2. The further layer P expands and contrasts the convex projection from the level layer T1, and the imagination is divided into light and concave countermeasures. Example 3 A single degree of water on the screen, the expansion part shape will be convex, fine, positive, or negative, 0 The thick anti-screen and 黠 BB light are used as a layer to be recessed. This type of pattern is spotted. The 0 kinds are relatively thin and gaseous. Such as 13 and the shooter and ~ 1 this child > its olive-shaped and empty-shaped, the layer, the transparency 3-convex particles and so on, especially the surface, and the surface is scattered, it will be analyzed 0. Recessed. Form a box with 13 broken tables to expand the tilt, the solution is the degree of inversion ratio and the degree of inversion ratio. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 issued) --- l · I -----!. ^----- Γ — Ι1Τ ------- I. (Please read the precautions on the back before filling out this page) Printed by A7 B7, Consumer Cooperatives, Bureau of Intellectual Property, Ministry of Economic Affairs 5. Description of the invention (24) In the following, referring to FIGS. 11 to 13, an example of a cell of a transmissive curtain formed using the light diffusion layer 13 will be described. * Example 1 1 In FIG. 11, the transmissive screen 14 is composed of a light expansion layer 13, a polarizing film layer 15, a transparent plastic calendar 16, and an anti-reflection layer 17 in order from the light source side. . In the present invention, the light diffusing layer 13, the polarizing film layer 15, the light-transmitting plastic layer 16, and the anti-reflection layer 17 are all integrated and integrated with each other, from the viewpoint of handling properties of the transmissive screen. It is more ideal, but it is also possible to laminate the light diffusion layer 13 with the polarizing film 15, the transparent plastic layer 16, and the anti-reflection layer 15 together, and then laminate the light diffusing layer 13 together. By. The polarizing film layer 15 is the same as that used in the first and second embodiments of the invention. The polarizing film layer 15 has the polarization axis of the polarized light transmission axis and the projection axis of the light sphere to be the same. The transparent adhesive is used. It is bonded to the light diffusing layer 13 and the transparent plastic layer 16 and integrated. When the contrast of a transmissive screen is improved by using this polarizing film layer of 15 μm, compared with the above-mentioned transmissive screen in which the light diffusing layer is divided into several layers, the diffusing layer contains a higher concentration of light diffusing material. The polarizing chirped layer 15 is disposed closer to the inspection side than the light diffusion layer 13. Therefore, the projected light of polarized light from the photosphere will be affected by the added light diffusing material when passing through the light diffusing layer 13, and its polarized light will be scattered, and the light that has been scattered by the polarized light will enter the polarizing film layer 15. The retention rate P of polarized light will be reduced, which will cause the brightness of the transmissive screen to decrease or be colored. However, in the present invention, since the light diffusing layer 13 is formed as described above, the national standard (CNS) A4 specification (210 X 297 mm) can be applied to this paper standard (please read the precautions on the back before filling in (This page) ^ i ---- Ί 1— · Order --------- line. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 __B7_ V. Description of the invention (25) Polarization of the light diffusion layer 13 Stray emission is suppressed to a minimum, and the reduction in the retention rate P of the polarization of the projection light will be small, without causing the brightness of the transmissive screen to be reduced or colored. In the present invention, the measurement of the polarization retention P [35] is shown in FIG. 15A. A white image is projected from the photosphere 22 onto a transmission screen 23 composed of a light diffusion layer, and The polarizing filter 24 is provided between the transmission screen and the luminance meter 25. The polarizing axis of the polarizing filter 24 is parallel to the polarizing axis of the projection light of the photosphere 22. The brightness of the light of 24 is Leiax, and the polarization axis of the polarizing filter 24 is orthogonal to the polarization axis of the projection light of the photosphere. The measured brightness of the light passing through the polarized chirped light H24 is Lmin. Equation ⑴ calculates the retention rate P. P = (Hinax-Lmin) / (Ln! Ax + Linin) x ΊΟΟ ---- ⑴ The retention rate P of this polarization is in the bark state without the transmissive screen 23, and the degree of measurement is 98Si. In the present invention, the polarization retention ratio P is 85S; the above is ideal, more preferably 87¾ M, and even more preferably 90¾ or more. This is because when the polarization retention ratio P is less than 85¾, the brightness of the transmissive screen tends to decrease or be colored. The light-transmitting plastic layer 16 is the same as that used in the first and second inventions, and it is preferable to use the same thermoplastic resin as the transparent resin 13A constituting the light diffusion layer 13. In addition, in order to further improve the contrast of the transmissive screen, the thermoplastic resin constituting the light-transmitting plastic layer 16 may be added with a light absorption of a pigment or a dye such as carbon black or a female compound to a level of 50 to 200 ppb. . It is applicable to each wavelength -27- This paper size applies _ National Standard (CNS) A4 specification (210 X 297 mm), --- I ----------: ^ ··!- --i, --- order --------- line < Please read the notes on the back before filling out this page) Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (26) '' Light absorption characteristics can be used like neutral density phosphor film (NDF ) Planar absorption characteristics, or selective absorption characteristics of the wavelength M of the projection light from the image source plus M absorption. In this case, the transparent plastic layer 16 is preferably one having a total light transmittance of 40 to 80¾. The adhesion of the polarizing film layer 15 to the light scattering layer 13 and the transparent plastic layer 15 can be preliminarily bonded to both sides of the polarizing film layer 15 or the light diffusing layer 13 and the colorless transparent or colored transparent transparent plastic layer 16 On one side, a transparent adhesive is formed to adhere. The type of adhesive used is not particularly limited as long as it has close adhesion to both sides of the sheet, and is colorless or colored and transparent. It can be used from pressure-sensitive adhesives, water-based adhesives, and infrared-type adhesives that are commonly used. Among them, it is appropriately selected and used. However, in order to suppress the reflected light due to the difference in refractive index at the interface, the refractive index of the adhesive must be as close as possible to the refractive index of the plastic plate used. [Embodiment 12] The transmissive screen 18 of the embodiment shown in Fig. 12 is composed of an anti-reflection layer 17, a polarizing film layer 15, a transparent plastic film layer 16, and a light diffusion layer 13 in this order from the observation side. • Embodiment 13 The transmissive screen 19 of the actual pickled example shown in FIG. 13 is composed of an antireflection layer 17, a polarizing film layer 15, a light diffusing layer 13, and a translucent plastic layer 16 in this order from the observation side. In the present invention, the contrast C2 of the transmissive screen is measured as shown in FIG. 16 and the luminance (LW) when a white image is projected from the photosphere 22 onto the transmissive screen 23 is measured by a luminance meter 25, and The black image from the light ball 22 -28- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm).: ----------, installed ·: ---- ---- Order --------- line (please read the notes on the back before filling out this page) Consumption Cooperation of Employees of Intellectual Property Bureau of the Ministry of Economic Affairs Du printed 409196 A7 _B7_ V. Description of Invention (27) Projection The brightness (LB) of the transmissive screen 23 is calculated by the following formula (2). When measuring the brightness, a lighting device is provided on the light emitting surface side of the transmissive screen 23 so that the emitting surface has an external light intensity of 500 LX (lux). C = (LW-LB) / (LV + LB) ⑵ In the present invention, this contrast C value is ideal at 0.85M, more preferably at least 0.87, and even more preferably at 0.9M. Also, similar to the actual pickled examples of the first invention and the second invention, it is preferable to form an anti-reflection layer on the surface of at least one side of the transmissive screen, preferably on the surface on the observation side, so that the reflection of external light can be more suppressed , And you can get a higher contrast transmissive screen. Moreover, in the transmissive screen structured as described above, similar to the actual examples of the first invention and the second invention, a linear Fresnel lens is formed on the light source side surface or the observation side surface. Then, the light-concentrating characteristic can be imparted, and when the image is viewed from an oblique direction, the brightness distribution over the entire surface of the screen can be made uniform. Fifth Top Invention Example of Punishment of Punishment The following is a description of a real cell example of the fifth invention of the present invention. Example 14 The real cell example of the fifth invention is a transmissive screen having the same configuration as the real example of the eleventh invention of the fourth invention. In the real life example of the eleventh circle, the transmissive screen 14 is a layer in which the polarizing film layer 15 is disposed between the light diffusing layer 13 and the transparent plastic layer 16. And, an anti-reflection layer 17 is formed on the surface on the observation side. And from the transmission screen -29- This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm) ---- 1 ---------- ^ ------- --Order --------- line < Please read the notes on the back before filling out this page) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs's Consumer Cooperatives 409196 A7 _B7 28 V. In light of the handling of the invention description (), these light diffusion layers 13. The polarizing film layer 15, the translucent plastic layer 16, and the anti-reflection layer 17 are ideally integrated with each other, but it is also possible to laminate only these sheets, or to combine the polarizing film 15 and the translucent A structure in which the plastic layer 16 and the anti-reflection layer 17 are bonded and integrated, and then the light diffusion layer 13 is laminated. In the eleventh aspect, the translucent plastic layer 16, the fistula light film layer 15, and the anti-reflection layer 17 are the same as those in the fourth invention, and are similar to those in the first and second embodiments of the invention. . The light diffusing layer 13 is the same as that used in the fourth embodiment of the invention. Also, as in the fourth invention, a Fresnel lens can be formed on at least one surface of a transmissive screen. In FIG. 11, the transmissive screen is arranged with the light-diffusing layer 13 side as the light source side, and the light-transmitting plastic layer 16 with the anti-reflection layer 17 attached to it. However, the anti-reflection layer may be provided. The light-transmitting plastic layer 16 of 17 is used as a light source, and the light-diffusing layer 13 is used as a viewer. However, if the light-transmitting plastic layer 16 with the anti-reflection layer 17 is used as the observation side, the effect of improving the contrast of the polarizing film 15 is high, which is ideal. Example of the invention of the window frame • Example 15 The following describes an example of a transmissive screen using a light diffusing plate containing light diffusing coating particles according to the sixth invention of the present invention. A light-diffusing sheet containing light-scattering particles is a light-transmitting resin that contains light-diffusing coated particles. -30- This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) --- Κ -----! ^ ----- ·· 11 Order ----------- -Line-(Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 409196 A7 __B7_ V. Description of the invention (29) As shown in Figure 17, The light-diffusing coating particles 26 used are those having a core structure covered by the surface of the silicone resin rubber spherical particles 27 and the K resin layer 28. The resin layer 28 is preferably a harder M, and the M is more than half organic. A silicone resin is most desirable. In addition, in order to make the silicone rhenium rubber spherical particles 27 fully exert their characteristics, the ratio of the silicon copper rhenium rubber spherical particles 27 to the resin layer 28 is such that the volume ratio of the silicone rhenium spherical particles 27 to the coating particles 26 is 50¾ or more. ideal. In order to further improve the impact strength of the light-diffusing sheet, the hardness of the silicone-based rubber spherical particles 27 constituting the core of the spherical coated particles 26 is K JIS A (Japanese Industrial Standards Civil Engineering and Construction Industry Department) hardness less than 60 As ideal. When the hardness of the silicone rubber spherical particles 27 is less than 60, although it is a comparative thing, a resin layer 28 having a polyorganosilsesquioxane-based resin is formed on the surface, so that it can be obtained in a light-transmitting resin. Spherical coated particles 26 with excellent dispersibility. Such spherical coated particles 26 can be produced by a method described in, for example, Japanese Patent Application Laid-Open No. 7-19681. The volume-average particle diameter of the spherical coated particles 26 is 1 to 8; um, preferably 1.5 to 1.5. If the volume-average particle diameter of the spherical coated particles 26 is less than lwin, the transmitted light tends to be colored yellow or transparent due to scattering. On the contrary, if it is larger, the light diffusivity will decrease, and To obtain the desired light diffusivity, there will be too many additives, it will be difficult to manufacture the light diffusing plate, or it will tend to reduce the impact strength. In the light-diffusing sheet of the present invention, the silicon-31- which constitutes the spherical coated particles 26-This paper size is applicable to the national standard (CNS) A4 specification (210 X 297 mm). --- ^ ----- ------ ^ --- 1 [.---- Order --------- line (please read the precautions on the back before filling this page) A7 B7 V. Description of the invention (3G ) (Please read the precautions on the back before filling out this page) _The refractive index difference Δη between the rubber spherical particles 27 and the light-transmitting resin is 0.06 Μ, and preferably 0.065. If the refractive index difference Δ η is less than 0.06, the viewing angle will be narrowed due to the decrease in light diffusivity. To obtain the desired light diffusivity, the required amount of addition will be too much. In the manufacture of light diffusive plates Difficulties may occur, or there is a tendency for the impact strength to decrease. In addition, the spherical coating particles 26 are dispersed in the light-transmitting resin in a range of 0.01 to 100 g / m2. The content of the spherical coating particles 26 is in a range in which the target light diffusibility can be exhibited. The added amount, but if the content is less than 0.01g / m2, the light diffusivity will be too weak, and there will be a tendency to fail to obtain sufficient light diffusivity. On the contrary, if it exceeds 100g / m2, the light diffusivity will be too low. Strong, reduce the total light transmittance, or the light diffusing plate tends to be difficult to manufacture. In addition, for the purpose of improving the contrast of the light diffusing plate, K can also be selected to include a light absorbing agent such as carbon black or a neodymium compound, or a light absorbing agent (for example, 50 to 50%) including the spherical coating particles 26 and the light-transmitting resin. 200PPB1 degree). There is no particular limitation on the light absorption characteristics of the light absorber used, but it can also be made according to its purpose. Specific absorption characteristics selected by specific wavelengths. 0 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The thickness of the light diffusing plate is not particularly limited, but when it is used in applications such as a transmissive screen that requires high resolution, it is preferable from the following. The light-transmitting resin constituting the light-diffusing sheet is not particularly limited as long as it is a transparent resin. For example, methacrylic resin, styrene resin, copolymer of methacrylate and styrene (MS resin), Polycarbonate-32- This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) A7 B7 V. Description of the invention (31) Ester resin and polyvinyl chloride resin. Among them, a methacrylic resin based on K having high transparency is preferable. When it is used for applications requiring high impact strength, an impact-resistant methacrylic acid rhenium resin is also preferable. The light diffusing plate of the present invention can be used as a light diffusing layer in the embodiments of the first to fifth inventions to form a transmission screen, and can also form a double layer on the surface of at least one side of the light diffusing plate. Lenses such as lenses, Fresnel lenses, and shuttle lenses are used as various lens plates on transmissive screens. • S Example 16 The transmissive screen 20 of the embodiment shown in FIG. 14 is constructed from the observation side in the order of the anti-reflection layer 17, the transparent plastic layer 16, and the light diffusion layer 13. In this configuration, since a polarizing film layer is not used, the light-transmitting plastic layer 16 should be made to contain a light absorbent such as carbon black or a neodymium compound, such as a pigment or a dye, so that the contrast ratio of the transmissive screen is increased. Ideally, the total light transmittance of the transparent plastic layer 16 is in the range of 40 to 70 S; the range is ideal, and the range of 40 to 65% is more desirable. An anti-glare layer M may be formed instead of the anti-reflection layer, and further, an anti-charge layer or a hard cladding layer or a polarizing film layer may be formed. In the following, the present invention will be specifically described with the test examples, but the present invention is not limited to the following experimental examples. The evaluation methods of the transmissive screens obtained from the experimental examples and comparative examples under M are as follows. • Μ 0 (Hazfi) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) < Please read the precautions on the back before filling out this page) On -----, --- Order --------- line-Intellectual Property of the Ministry of Economic Affairs Employee Consumption Co-operative Society Prints Intellectual Property of the Ministry of Economic Affairs Bureau's consumer cooperation Du printed 409196 A7 _B7_ V. Description of the invention P) Measured by the product turbidity meter HR-100 of the Institute of Color Technology (stock company). • mmm ^ fg 〇) The LCD projector XVE-5 0 0 M — manufactured by Libao (stock company) is used to illuminate the test piece at a fixed illuminance, and the brightness is measured from the opposite side with the color brightness meter BM7 manufactured by Dopcom (stock company), and The ratio of illuminance to brightness is used as the screen gain Go. • α 侑 In the above screen gain measurement, a viewing angle of 1/2 gain can be obtained as α. • Θ letter In the above screen gain measurement, a viewing angle of 1/3 gain can be obtained as β. • The speckle uses the same projector as above as the light source, and projects a white image on the transmissive screen from a distance of lm to form a 30-inch surface, and observes with the naked eye from a distance of 0.5 m from the transmissive screen. , M determines the presence or absence of spots. • Analyze friction Use a grid with a spatial frequency of 4 [lp / mm], and measure the MTF value by the K comparison method. • S_fcL_ £ _ (C) Use the same projector as above as the light source, and project the white and black images from the distance a to the center of the transmissive screen to form the 50 μm β square side. Company) Product Color Brightness Meter BM-7 — 34- This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) --- L --------- ^ ----- ---- Order --------- line; (please read the precautions on the back of the page before filling in this page) A7 B7 ^ 09196 V. Description of the invention f), leave the transmissive screen Ι.Οπι At the distance, the brightness (LW) at the white end surface and the brightness (LB) at the black end surface were measured, and calculated from the above formula (2). The external light intensity on the transmission screen during measurement was set to 500 lux. • When the polarization ratio is maintained using the measuring device of FIG. 15, a white image is projected from the projector 22 onto a transmission screen, and the polarization axis of the polarization filter 24 is parallel to the polarization axis of the projection light of the projector 22. When the measured brightness (L in a X) is orthogonal to the polarization axis of the polarizing filter 24 and the polarization axis of the projection light of the projector 22, the measured brightness (Lrain) is calculated according to the above formula (1). • Tzod 忒 d 鼹 麻 麻 Measured from JIS K (Japanese Industrial Standards Chemical Industry Sector) 7110 to calculate the easy-to-type impact strength (a ki). • Test of the child's rush test According to JIS K7 211, calculate the energy of 50¾ (E 50). • Experimental Example 1 Production of 光 1Kamakisan 暦 In a methyl ethyl methyl _ (MEK) solvent, 20 weight dollars of acrylic resin particles were added (Acrylic RF-065 manufactured by Mitsubishi Electric Corporation), — The noodles were stirred and dissolved to obtain an acrylic resin solution. The light diffusing material 1B is a cross-linked styrene tree B with spherical weight of 6 w η (product of Sekisui Chemical Industry Co., Ltd. SBX-6, refractive index 1.59), with a ratio of 28.0 weight S to acrylic resin; The added amount is added to the acrylic resin solution, and the mixture is stirred and mixed to make it uniformly dispersed. Next, this acrylic resin containing light diffusing material is dissolved-35- This paper size is in accordance with China National Standard (CNS) A4 (210 X 297 mm). ^ ----------- ^- ---.--- Order --------- line (please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 409186 V. Invention Description P) The liquid was coated on a glass plate with a bar coater to form a thickness of 400 «10 in a solvent-wet state. Then, it is heated at 50110 minutes and then at 1001010 minutes to evaporate the solvent. After drying, it is peeled from the glass plate to obtain a light diffusion film 1 (first light diffusion layer) in which the light diffusion material 1B is uniformly dispersed. The thickness of this 瞑 1 is 80win. When the film was peeled off, no cracks or the like occurred in the film, and the film was easy to handle. The optical properties of the fabricated 瞑 1 are shown in Table 1. Production of the second photocatalyst The crosslinked methacrylic acid / styrene copolymer resin spherical microparticles (sedimentation) of a partially polymerized methacrylic resin are crosslinked methacrylic acid / styrene copolymer resin having a weight average particle diameter of 2B as a light diffusion material Finished Industrial Corporation product MSH-5, refractive index 1.53) was added to 1.3 weight of SS to polymerize, and a light diffusion plate 2 (second light diffusion layer) having a thickness of 2000 Win was produced. In the methacrylic paraffin wax light diffusion plate 2 constituting the second light diffusion layer, the light diffusion material 2B is uniformly dispersed. The optical characteristics of the produced board are shown in Table 1. The first light diffusion layer of the second light eaves layer of Guangtang Sanli will overlap the first light diffusion layer and the second light diffusion layer made as described above, sandwiched between a pair of stainless steel mirror panels with a thickness of 1Η11B The first light diffusing layer and the second light diffusing layer were laminated by hot pressing to form a transmissive screen with a thickness of 2080 wm as shown in FIG. 1. The measurement results of the screen and the total components are shown in Table 2 as the measurement results of the gain (Go), α value, / 9 value, and resolution (MTF) of the screen and the speckle observation results. The obtained " * 36 * This paper size is applicable to China National Standard (CNS) A4 (210x 297 mm) Ί [I ^ ------ ·! ^ .—-- 1! -Order --- ------ Line (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 409196 V. Description of the invention (35) In the transmissive screen, not only its MTF is as high as 40¾. And no speckles, (please read the precautions on the back before filling in this page) The α value of the viewing angle is also 34 degrees, and the viewing angle has a fairly wide viewing angle, which has uniform brightness on the whole image. Uneven image. Moire fringes did not occur.

Spherical glass beads (Toshiba Baller) with a weight average particle diameter of 10 // m as a light diffusing material 2B were added to methacrylic resin particles (Acrylic Vite from Mitsubishi Electric Corporation). Tony's product EMBIO, refractive index 1.52), was dispersed with a hemispherical bark mixer, and then a 30 mm diameter biaxial extruder was used to prepare acrylic resin particles containing a light-expanding material. Then, the granules were plated by a 50-mm diameter uniaxial extruder to form a second light-expanding layer 2 having a thickness of 2000 wm. In this second light-diffusing layer, the light-diffusing material forms a uniform disperser. The optical characteristics of the prepared second light diffusion layer 2 are shown in Table 1. The first light scatter layer and the second light scatter layer will be the second light diffusion layer made as described above and the first light expansion layer made in Experimental Example 1. M is the same as Experimental Example 1. Methods are laminated to make a transmissive screen. The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints the total acres of the total onion screen. The measurement results of the gain (Go), c (value, call value, and resolution (MTF) of this screen and the observation results of speckles are related. As shown in Table 2. In the obtained transmissive screen, not only its MTF is as high as 42¾, but it does not produce speckles. The alpha value of the viewing angle is also 33.9 degrees, and it has a fairly wide viewing angle. It is applicable to China on the paper scale National Standard (CNS) A4 specification (210 X 297 mm) A7 B7 409196 V. Description of the invention (36) The image has uniform brightness as a whole, and an image with no uneven brightness is obtained. No moire is produced. • Experimental Example 3 The first light diffusing material 1B except for the first light diffusing layer is a spherical silicon resin bead with a weight average particle diameter of 3 wm (Toshiba Silicon Co., Ltd. Dusba 130 (TP130), refractive index 1.42 ), The added amount is 40 stars, and the added amount of the second light diffusing material 2B of the second light diffusing layer 2 is .. 4 The weight is the same as that of Experimental Example 1 and the transmission screen is made. The optical characteristics of the light diffusion layer 1 and the second light diffusion layer 2 are shown in Table 1. In addition, transmission The measurement results of the total characteristics of the type screen are shown in Table 2. In the obtained transmission type screen, not only its resolution (MTF) was 髙 to 30%, but no speckles were generated, and the ct value of the viewing angle was 36.0 degrees. With a relatively wide viewing angle and uniform brightness throughout the image, an image without uneven brightness and darkness was obtained. Moire fringes did not occur. • Experimental Example 4 Except for the first light diffusion layer 1, the first 1 The base material 1A is a methacrylic resin / styrene copolymer resin (MS) (product of Denki Chemical Co., Ltd. TX400, refractive index 1.54), and the first light diffusing material 1B is a sphere having a weight average particle diameter of 4.m Silicone beads (Toshiba Silicon Co., Ltd. Dusba particles 145 (TP145), refractive index 1.42), although added 40 weight: K, the second base material 2A of the second light diffusion layer 2 is used and the first base Material 1A is the same material, and the second light diffusing material 2B is spherical crosslinked methyl methacrylate resin microparticles with a weight average particle diameter of 8u m (manufactured by Loushui Chemical Industry Co., Ltd. MBX-8, refractive index 1.49). Standards apply to China National Standard (CNS) A4 specifications (210 X 297 male ):-. Install --------, order --------- line (Please read the precautions on the back before filling this page) The Intellectual Property Bureau of the Ministry of Economic Affairs, the Consumer Cooperatives, printed the economy Printed by the Consumers ’Cooperative of the Ministry of Intellectual Property Bureau A7 B7 V. Description of the invention (37), the added amount is 1.4 weight: except that the rest is the same as in Example 1 to make a transmissive screen. 1st light diffusion layer 1 The optical characteristics of the second light diffusing layer 2 are shown in Table 1. The measurement results of the total characteristics of the transmissive screen are shown in Table 2. In the obtained transmissive screen, not only its resolution (M TF) is as high as 50¾, but no speckles are generated. The alpha value of the viewing angle also has a wide viewing angle of 32.1 degrees, which has a uniform brightness on the entire image. , And obtain images without uneven brightness. Moire fringes did not occur. • Comparative Example 1 Only the first light diffusing layer 1 made in Experimental Example 1 was used as a transmissive screen. The measurement results of the coupling characteristics are shown in Table 2. The resolution (MTF) of this transmissive screen is as high as 78¾, and the ct value of the viewing angle also has a wide viewing angle of 32.0 degrees, but it produces a lot of specks. • Comparative Example 2 Except for the first light diffusing material 1B, a spherical silicone resin with a weight average particle diameter of 0.5 w m (Toshiba Silicon Co., Ltd. Dusba 105 (TP105), refractive index 1.42) was added in an amount of 25 weight! Except for K, the rest is made as the first light diffusion layer 1 in the same manner as in Example 1. When the first light diffusion layer 1 is used to form a transmissive screen, when the optical characteristics and total characteristics are to be measured, the particle diameter of the light diffusing material is too small, and the light source transmits light. Measured. • Comparative Example 3 Except for the first light diffusing material 1B, crosslinked stupid vinyl resin spherical microparticles with a weight average particle diameter of 15 wm were used (Sekisui Chemical Industry Co., Ltd. This paper applies the national standard (CNS) A4 specification (210 X 297 mm) {Please read the precautions on the back before filling out this page) Clothing i J 1 · --- 'Order * ---- Line. Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of Invention (38) Product SBX-15, refractive index 1.59), except that the addition amount is 60 weight 5K, and the rest are the same as in Test Example 1, and a first light diffusion layer 1 is made. Only the first light-diffusing layer 1 is used to form a transmission screen. When the optical characteristics and the total characteristics are to be measured, the particle diameter of the light sintering material is too large. For the same screen gain, the added amount (60 weight SK) is too much, becomes weak, and cracks occur, which cannot be measured. Comparative Example 4 Except for the first light-diffusing layer 1B, the first light-diffusing material 1B was added in an amount of 15 weight S; and the thickness after drying was 75wio, and the second light-diffusing material 2B of the second light-diffusing layer 2 Cross-linked styrene resin spherical microparticles with a weight-average particle diameter of 8 Wm (product of Sekisui Chemical Industry Co., Ltd. SBX-8, refractive index 1.59) are added with a weight of 0.5K and 5K. The rest are the same as those in Experimental Example 1. Into a transmissive screen. The optical characteristics of the prepared first light diffusion layer and second light diffusion calendar are shown in Table 1. Table 2 shows the measurement results of the coupling characteristics of the transmissive screen. The resolution (MTF) of the obtained transmissive screen is as high as 65¾, and the generated speckles are few. However, because the amount of the first light diffusing material is too small, the alpha value of the viewing angle is 14.0 degrees, which is The field of view is extremely narrow. • Comparative Example 5 The first light diffusion layer 1 was made in the same manner as in Experimental Example 1 except that the first light-expanding material 1B was added in an amount of 40 weight and 1 Ϊ, and the thickness after drying was 45 wm. Only the first light-diffusing layer made of this structure is used. -40- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) Install:-! _--- [Order --------- line. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 _B7_ V. Description of the invention (39) Become a transmissive screen. When measuring its optical characteristics and total In terms of characteristics, since the thickness of the light diffusion layer 1 is too thin, to obtain the same screen gain as in Experimental Example 1, the added amount (40 weight Ϊ :) is too much, it becomes very weak, and cracks are generated. Measured. Comparative Example 6 Except for the first light diffusing material 1B of the first light diffusing layer 1, the addition amount was 9.3 weight Si, and the thickness after drying was 250 wm. The second light diffusing material 2B of the second light diffusing layer 2 was used. Cross-linked styrene resin spherical particles with a weight-average particle diameter of 8 / im (products of Sekisui Chemical Industrial Co., Ltd. SBX-8, refractive index 1.59), the addition amount is 1.0 weight "; the rest are the same as in Experimental Example 1 Made of transmissive screen. Table 1 shows the optical characteristics of the produced first light diffusion layer 1 and second light diffusion layer 2. Table 2 shows the measurement results of the total characteristics of the transmissive screen. Viewing angle c (value is 38.5 degrees, which is ideal, and speckles are not generated. However, since the first light diffusion layer 1 is too thick, its resolution (MTF) is 3¾, which is extremely low. Comparative Example 7 The second light diffusing material 2B except for the second light-expanding layer 2 is made of spherical silicone resin particles having a weight-average particle diameter of 4.5 wm (Toshiba Silicon Co., Ltd. Dusba particles 145 (TP145), refractive index 1.42) , The added amount is 0.06 weight $, and the thickness is 3000ttm, the rest is the same as the transmission screen made in Experimental Example 1. The optical characteristics of the first light diffusion layer 1 and the second light diffusion layer 2 The results are shown in Table 1. The measurement results of the coupling characteristics of the transmissive screen are shown in Table 2. The viewing angle of -41-This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) ) --- ^ --------- " ^ · Γ · -------- Order --------- line (Please read the notes on the back before filling in this Page) A7 B7 409196 V. Description of the invention (4 <)) c (The value of 32.1 degrees is ideal, and the resolution (MTF) is as high as 55¾, but the turbidity of the second optical expansion layer 2 is 45.0¾ and is too low, resulting in a lot of specks. • Comparison Example 8 The second light diffusing material 2B except for the second light diffusing layer 2 is a crosslinked methacrylate / styrene interpolymer resin spherical particle having a weight average particle diameter of 5 W m (product of Sekisui Chemical Industry Co., Ltd. MSH-5 (Refractive index 1.53), the added amount is 6.2 weight ϊ, and the thickness after drying is 450 uni, and the rest is the same as the transmission screen made in Test Example 1. The first photo-depletion layer made The optical characteristics of the first and second light diffusing layer 2 are shown in Table 1. Also, the measurement results of the coupling characteristics of the transmission screen are shown in Table 2. The α value of the viewing angle is 32.1 degrees, which is ideal. The resolution (MTF) is as high as 40¾, but because the thickness of the second light diffusion layer 2 is too thin, the total thickness of the first and second light diffusion layers is also as thin as 530 to produce speckles, and it is to be installed on a projection TV Difficulties when carcassing. {Please read the notes on the back before filling this page) Clothing —---- 1 — I-Order --------- Ministry of Economy Printed by the Intellectual Property Bureau Staff Consumer Cooperatives This paper is printed in accordance with the national standard (CNS) A4 specification (210 X 297 mm) ο 9 \ Up 9ο 4 A7B7 V. Description of the invention (w) Staff Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed [Table 1] Light-expanding layer base material Photo-inlay 馼 / addition amount (wl%) Refractive index difference △ π Haze ⑴ Screen gain G η 1/3 gain sight angle (degrees) Thickness (u η) Experimental Example 1 1st PMMA SBX-6 / 28 · 0 i .: Solitary-> 0.10 89.2 1.! 45.0 80 2nd PUUA siiSH-5 /1.3 0.04 61.9 60. 0 4.3 2000 Experimental Example 2 1st PUMA SBX-6 / 28.0 0.10 89. 2 1 '' 45. 0 80 2nd PMMA EMB-l0 /2.0 0. 03 5S. 0 63. 0 3.8 2 000 Experimental Example 3 1st PUMA TP130 / 40. 0 0 . 07 89.2 0.9 50.0 80 2nd PUUA MSH-5 /1.4 0. 04 62.3 40. 0 5. 1 2 000 Ranunculus Test Example 4 1st MS TP145 / 40. 0 0.12 89. 2 1.1 47.0 60 2nd MS MBX- 8 /1.4 0.05 70. 1 70.0 3.1 2 000 Comparison example 1 PMMA SBX-6 / 28.0 0. 1 0 89. 2 1. 1 45 · 0 80 Comparative example 2 PMMA TP-105 /25.0 0.07 cannot hold 80 Comparative Example 3 1st PMMA / SBI-15 / 60. 0 0.10 Unable to measure 80 Comparative Example 4 First PMMA SBX-6 /15.0 0.10 85.7 6.3 17.8 75 Second PMMA SBX-8 /0.5.10 0 76,0 29.0 9. 8 2000 Comparative Example 5 First PUMA SBX- 6 / 40. 0 0. 10 Unable to measure 45 Comparative Example 6 1st PMMA SBX-6 / 9. 3 0.10 89. 2 t. 1 45.0 250 2nd PMMA SBX-8 /. 0 0. 1 0 84. 4 9 5 16.9 2000 (Please read the notes on the back before filling out this page) The paper size applies to the Chinese National Standard (CNS) A4 (210 X 297 mm) 409196 A7 _B7 V. Description of the Invention (42) Comparative Example 7 1 PMMA SBX ~ 6/28 · 0 0.10 89. 2 1.. 1 45.0 80 2nd PMMA TP-145 /0.06 0.07 45. 0 2 5 2.0 2.0 3 0 0 0 Comparative Example 8 1st PMA SBX-6 /28.0 0.10 89.2 I, 1 45.0 80 2nd PMMA MSH-5 / 6. 2 i 0, 04 61.9 60.0 4, 3 450 PMMA: Polymethyl methacrylate MS: Methyl methacrylate / Styrene copolymer Intellectual property Printed by the Bureau ’s Consumer Cooperatives [Table 2] Screen gain α 値 (degrees) β 値 (degrees) Resolution (%) Speckle generation Experimental examples: 1 1.0 34.0 46.0 40 No experimental examples 2 1. 0 33 * 9 45. 0 42 No experimental example 3 0.9 36.0 47.0 30 No experimental example 4 1. 1 32. 1 43. 0 50 No comparative example 1 1.1 32.0 45.0 78 Many comparative examples 4 4, 5 14.0 18. 3 65 Few comparative examples 6 0. 7 3 8.5 53.2 3 No comparison Example 7 1 ″ 32. 1 42. 9 55 Many comparative examples 8 1.1 32.1 42. 9 40 Ϊ > f,---------- Ji 1 IIIII. ------ 'II ( Please read the precautions on the back before filling in this page) -44- This paper size is applicable to China National Standard (CNS) A4 (210x297 mm) A7 409196 B7_ V. Description of the invention (43) * Spring test example 5 Experiment The first light diffusing layer 1 and the second light diffusing layer 2 made in Example 1 are superimposed so that one surface thereof contacts a stainless steel mirror panel and the other surface thereof contacts a linear Fresnel lens having a focal length of 520mni. The forming surface of the metal mold is clamped by the person and hot-pressed into a transparent screen with a thickness of 2080 «m as shown in Fig. 2. The optical characteristics of the manufactured transmissive screen are the same as those of Experimental Example 1 except that it has the light-condensing characteristics of a linear Fresnel lens. Since the formed linear Fresnel lens condenses the observation side, it can The central part and the 4 corners of the heavy surface make the image with a small difference in brightness appear. • Experimental Example δ A polarizing film with a single side attached with an adhesive (product of Nitto Denko Corporation NPF -F 1 2 2 0 DU, monomer light transmittance 4 U, polarization degree 9 9 8 5K), so that the polarized light transmission The axis is parallel to the polarization axis direction of the projection light of the LCD projector, and its adhesive is adhered to a surface of the observation side (second light diffusion layer side) of the transmissive screen made in Experimental Example 1. It is laminated to produce A transmissive screen with a thickness of 2280ϋ in is shown in Fig. 5. The optical characteristics of the manufactured transmissive screen are the same as those of the experimental example, except for the radiation characteristics of the polarizing film. The polarizing film is applied after being aligned with the transmission axis of the polarized light. Therefore, the loss of the projection light can be maintained to a minimum, and the amount of external light can be blocked to about one-half. Therefore, a very high contrast can be obtained. The image is displayed. In addition, as a result of investigation, as a result of evaluating the polarized light characteristics of the Sonic treasure liquid crystal projector XVE-500 used, it was a linearly polarized light projected in one direction. -45- This paper size is in accordance with China National Standard (CNS) A4 (210 X 297 mm) ---- Ί ί I --- IIII, ί III .1 II ^ * II I ---- * ' -'* (Please read the precautions on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Consumer Cooperatives of the Ministry of Economic Affairs Intellectual Property Bureau Printed by A7 _B7_ V. Description of the Invention (44) • Experimental Example 7 1 The photoresist layer was prepared in a methyl ethyl formazan (MEK) solution, and 20 weights of acrylic resin particles were added (products of Mitsubishi Ryogen Corporation acrylic acrylic RF-0 6 5 — while mixing, The acrylic resin solution was obtained while dissolving it. The light-expanding material 7B is a crosslinked stupid vinyl resin spherical microparticle having a weight average particle diameter of 6w m (product of Sekisui Chemical Industry Co., Ltd. SBX-6, refractive index 1.59), Μ The ratio of the acrylic resin to the added amount of 28.0 weight Si was added to the acrylic resin solution described above, and the mixture was stirred and mixed to make it uniformly dispersed. Next, this acrylic resin solution containing a light diffusing material was coated with a bar coater. Cloth on glass plate A thickness of 400 wm is formed. Then, M50t: 10 minutes, and then K1001C heating for 10 minutes. After the solvent is evaporated, dried, and peeled from the glass plate, a light diffusion film (first light diffusion layer) with uniformly dispersed light diffusion material can be obtained 7. The film thickness of the first light diffusing layer 7 is 80 / im. When the film is peeled off, the film has no cracks, etc., and the film is easy to handle. The optical characteristic of the manufactured light diffusing film is screen gain. (Go) is 1.1, the alpha value is 35.1 degrees, and the calling value is 46.5 degrees. The second photocatalyst is made in some polymers of methacrylic resin, and will be used as a light-expanding material. Although the weight of 11B is 2Wni, spherical silicone microparticles (Toshiba Silicon Co., Ltd. Dusba 120 (TP120). Refractive index 1.42) are added to an addition amount of 0.25 weight and 3 liters, and the thickness is 1000wm. Light diffusing plate (second light diffusing layer) 11. Constitutes the -4 6 * This paper size is applicable to the national standard (CNS) A4 specification (210x 297 mm) '---- „----- ---- ► ^ · V .--- Ί--Order ·! ------ '(Please read the notes on the back before filling this page ) A7 B7 409196 V. Description of the invention (45) '' In the light diffusion plate of methacrylic resin of the second light diffusion layer 11, the light diffusion material forms a uniform dispersion, and the turbidity of the plate is 68¾. (Please read first Note on the back side, please fill in this page again.) The 1st Guangtang Santu 7, the polarized light 9 and the second light sifted M11 have polarized film 9 (Polarticina) with adhesive layers 8 and 10 on both sides. The company made 0-18242 (0: monomer light transmittance 42 $, polarization degree 99.993!) On one surface with a first light diffusion layer 7 and a second light diffusion layer 11 on the other surface. By stacking them, a transmissive screen with a thickness of 1310 Wm as shown in FIG. 6 was fabricated. In addition, the shape of the transmissive screen is formed into a rectangle, and the light source to be used with it is a UE-500 LCD projector manufactured by 轚 赍 Corporation, and the polarization axis direction of the projection light of the projector is perpendicular to the ground, so the polarized light is polarized. The direction of the polarized light transmission axis of the film 9 is set on one side of the vertical arrangement of the parallel transmission type screen, and M is laminated.甚 一 谀 合 恃 忡 夕 _The employee consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed the first light diffusion layer 7 as a light source, and the second light diffusion layer 11 as a configuration screen on the observation side. ), Α value, / 3 value, resolution (MTF), and contrast measurement results and speckle observation results are shown in Table 3. Since the distance from the incident surface of the first light diffusion layer 7 (one surface on the opposite side to the polarizing film 9 side) to the exit surface of the second light diffusion layer 11 (one surface on the opposite side to the polarized light 9 side) is less than 1.5 iam, Therefore, not only has a resolution of 髙 to 25¾ (MTF), but no speckles are generated. The ct value of the viewing angle is 36 degrees, which has a sufficient viewing angle. The contrast is also 髙 to 0.95, with uniform brightness over the entire image. No uneven light and dark images, and no moire. • Experimental Examples 8 -4 7-This paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 409196 A7 _B7_; 5. Description of the invention (46) Fabrication of light-induced scattered β-light-absorbing material board < Please read the precautions on the back before filling this page.) To the methacrylic resin particles (Acrylic Vite from Mitsubishi Electric Corporation), the same light diffusing material 11B as used in Experimental Example 7 is added. The concentration is also the same. After dispersing with a hemispherical mixer, a 30 mm diameter biaxial extruder was used to prepare acrylic acid particles containing a light diffusing material. These particles and acrylic resin particles (acrylic VH manufactured by Mitsubishi Electric Corporation) were extruded by a parallel extrusion method to form a second optical expansion layer 11 having a thickness of 1000 W® and a light transmitting layer having a thickness of 3000 Wm. Flexible plastic board 12 — a laminated board. In the second light diffusing layer of this laminated board, the light diffusing material is formed to be uniformly dispersed. The optical characteristics of the prepared second light diffusion layer 11 were the same as those of Experimental Example 7. The first one is Nan 7 、, polarized Q, 箪 2 light 墉 diffuser layer 11 and light 忡 plastic 囿. Laminate the second light diffusion layer 11 and the transparent plastic plate 12 The first light diffusion calendar 7 and the polarizing film 9 used in Experimental Example 7 were laminated and integrated by a lamination method to form a transmissive panel with a thickness of 4,310 μm as shown in FIG. 7. The special feature of the screen M is designed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The first light diffusion layer 7 is used as the light source side, and the transparent plastic plate 12 is used as the inspection screen. ), C (value, / 3 value, resolution, contrast measurement results, and spot observation results are shown in Table 3. In addition, the translucent plastic plate 12 with a thickness of 3 mm is also laminated and integrated. Therefore, the rigidity of the transmissive screen can be improved, and it is easier to install it in the cabinet. -4 8-This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 409196 A7 B7 V. Invention Explanation (47) Light-transmitting black carbon 9 colored by M particles of allyl-acrylic acid agent. Examples include practical tests. 筲 是 余 0 蕖 δΐ The screen 78 type is a shot with a transmittance. As shown in the figure, the light shape of the 7th full-scale material such as 12% of the board is the same as that of the 7-layer widening light-spreading light screen 1. This is the opposite. The side view is placed on the 12-screen screen. The plastic shape is transparent and transparent. The source of the system will measure the light at the spot and the 31 / body knot. The degree comparison and degree resolution, the value β- 'value α within 2 sheets of plastic light transmittance are shown by 0 and 3, such as the point test verification of the male results and 7 cases of test verification. The absorption ratio is higher than some of the light. Some of the above 7 layers of diffused light are the same as in 7 cases and 10 cases. The experiments and the distance from the focus are mixed. The sex line is shaped and shaped into a liquid fat tree. The shape will be hard, and the outer 53. * 11 1_ body will be purple. The body is a mirror-shaped Erhui Nier rate β. The body is stacked on top of each other. 7 The layers are diffused, expanded, and actinic. The hard mirror line of the hard tree is shaped to cross the hard mirror line through the Zirconia so that the β t sexual line is out of purple. (Please (Please read the notes on the back before filling this page) ----,-II Order · --------- Printed by the consumer cooperation of the Intellectual Property Bureau of the Ministry of Economic Affairs, {iF 7 9. _ Layer film screen The failure of the light-screen expansion and expansion type special light and photo shooting 1 posted through the total number, K is shown on the above, fart The side 9 1 is the same as the 2¾ body sample lens and the f S 7 Nirvana line. * The screen diffused diffused light is transmitted through the 2nd, and the light from the side source will increase in the screen. Realize the alignment of the 11 and the ligand screen mirror type Erzhnetfi. The main observation is that the observations are compared in a certain measurement, and the analysis, value, value α -49- This paper size is applicable to the national standard (CNS) A4 specification (210 X 297 mm) A7 B7 409196 V. The results of the invention description (4 8) and the results of the speckle viewpoint are shown in Table 3. Since the linear Fresnel lens body 21 is attached to the incident surface of the first light diffusion layer 7, the brightness of the corners is increased, and high brightness uniformity can be obtained over a wide range of viewing angles. * Experimental Example 1 1 When the second light-diffusing layer 11 was produced, the addition amount of the light-diffusing material 11B was 0.83 weight S: and the thickness was 300 tim. The rest was the same as Experimental Example 7, and was made as Figure 6 is a transmissive panel with a thickness of 3310 / im. The turbidity of the produced second light diffusion layer was 89.3¾. The produced transmissive screen is arranged such that the first light diffusion layer 7 is on the light source side and the second light diffusion layer 11 is on the observation side. Table 3 shows the results of the measurement of the gain (G0), α value, / S value, resolution, and contrast of this transmissive screen, and the results of speckle. In this transmissive screen, no speckles are generated, the alpha value of the viewing angle is 37.2 degrees, a sufficient viewing angle has been obtained, and the contrast is as high as 0.95. It has uniform brightness over the entire image, and has no uneven brightness. image. However, since the distance from the incident surface of the first light diffusion layer 7 to the exit surface of the second light diffusion layer 11 is 3310 and is too thick, the turbidity of the second light diffusion layer 11 is 89,3 and is high, so the MTF is 12¾ resolution is slightly lower. • Comparative Example 9 Only a light-diffusion layer 7 made in Experimental Example 7 was used to form a transmissive screen. The measurement results of the total characteristics are shown in Table 3. This transmissive screen has an M TF of 60 ¾, with a high resolution, an alpha value of 35.1 degrees and a sufficient viewing angle, but it produces a lot of specks, and because a polarizing film is not used 9 -50-This paper is suitable for this paper ♦ National Standard (CNS) A4 specification (210 X 297 mm) • ---- Ί--I ----- ----- Ί — I order ---------- (( Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 409196 A7 B7 5. Invention Description (49) ', so the contrast ratio is 0.83 and it is too low to display difficult-to-see images. Reference Example 1 A polarizing film 9 was manufactured in the same manner as in Experimental Example 7 except that the polarizing film 9 was EN-1 8 2 5TD (a single transmittance of 44¾ and a polarization degree of 95¾). The produced transmissive screen is arranged such that the first light diffusing layer 7 is on the light source side and the second light diffusing layer 11 is on the observation side. The added value (Go), c (value, / 3 value) of this transmissive screen The results of the measurement of resolution, contrast, and contrast are shown in Table 3. In this transmissive screen, no speckles were generated: the alpha value of the viewing angle was 36.2 degrees, which has obtained sufficient The viewing angle has a uniform brightness over the entire image, and an image with no brightness and darkness is obtained, but the polarization degree of the polarizing film 9 is 95% and is too low, so the contrast is 0.89 and slightly lower. (Please Read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs [Table 3] Screen gain α 値 (degrees) J3 値 (degrees) Thickness (ym) Contrast resolution (%) Speckle generation experiment Example 7 1. 0 36.0 47, 9 13 10 0.95 25 No experimental example 8 1.0 36. 0 47. 9 43 10 0.95 25 No experimental example 9 0. 9 35.5 47 ″ 43 10 0.97 25 No experimental example 10 1. 0 34.0 46 · 0 13 10 0. 95 25 No food test 11 0 * 9 37.2 48.5 3310 0.95 12 No comparative example 9 1. i 35.1 46 + 5 80 0.83 60 Many reference examples 1 I. 0 36.2 48. 0 1310 0.89 25 None-5 1 _ This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) A7 B7 409196 V. Description of the invention (5 Q) ' Acrylic resin (acrylic PET V ί (ί 001, refractive index 1. 4 9) manufactured by Mitsubishi Chemical Corporation, will be used as light diffusion Material 1 3 Β Silicone ball microparticles (product of Shin-Etsu Chemical Industry Co., Ltd. X-52-1186, volume average particle diameter 3.5 «m, refractive index 1.42) added to a transparent resin constituting a transmissive screen occupying a concentration of 35 g / m2 A light diffusing plate 13 having a thickness of 0.4 mm was prepared by > i extrusion method. Table 4 shows the characteristics of the prepared optically expandable plate 13. Xue anthracene's tincture on one side of a transparent methacrylic resin with a thickness of 4 mm as a colorless transparent or colored transparent plastic plate 16 (acrylic acid ft 001 by Mitsubishi Chemical Corporation) will be on An anti-reflection film is formed on one side of the propyl ester (TAC) film, and an adhesive layer is formed on the other side. K serves as the anti-reflection film of the anti-reflection layer 1 7 (Nippon Oil and Fat Co., Ltd. 2 2 0 1 > The adhesive layer is laminated by a lamination method. On the other side of the plastic plate 16 on which one side of the anti-reflection layer 17 has been laminated, a polarizing film 15 (product of Bora-Tekna Corporation 0182421 ', polarization degree 99.99) is laminated. ! 1 ;, the light transmittance of the monomer 42¾) is laminated by K. Then, on the plastic plate with the polarizing film 15 attached thereto, the light diffusing plate 13 described above is laminated and integrated. The transmissive screen 14 having the structure shown in Fig. 11 is formed. The characteristics of the produced screen 14 are shown in Table 5. The produced transmissive screen 14 is configured so that the polarizing light constituting the transmissive screen 14 瞑The polarization transmission axis of 15 is parallel to the transmission pumping of the projector, -52- This paper size is applicable to China Standard (CNS) A4 (210 X 297 mm) (Please read the notes on the back before filling this page)-.-I-iT-eJI --1 n-II--1 I. Intellectual Property of the Ministry of Economic Affairs Bureau ’s consumer cooperation print 409196 A7 B7 V. Description of the invention (5b) When inspecting the projected image, it is almost impossible to see the occurrence of speckles, and high-resolution, sharp and high-contrast high-quality images are obtained. In addition, the reflection of external light has been reduced, and no moire or transparency (see through the light source) or coloration has been seen. Experimental Example 1 3 The use of a dye as a light absorber instead of full light transmittance The color is methacrylic resin of 79¾ (Mitsubishi Electric Co., Ltd. acrylic petrol (t〇99), K instead of the transparent methacrylic resin plate used in Experimental Example 12, and the rest is made in the same manner as in Experimental Example 12. The transmissive screen 14 shown in Fig. 11 is completed. The characteristics of the produced transmissive screen are shown in Table 5. The produced transmissive screen 14 is configured so that the polarizing film 15 constituting the transmissive screen 14 is configured. The polarization transmission axis is parallel to the transmission axis of the projector, In the projected image, the occurrence of speckles is almost no longer visible, and a high-refractive, clear, high-grade image with a high ratio is obtained. In addition, the reflection of external light has been reduced, and no moire has been seen. It may be transparent or colored. • Experimental Example 14 uses the same members as Experimental Example 12, and in the order of the antireflection layer 17, polarizing film 15, transparent plastic plate 16, and light diffusing layer 13 from the observation side, The components are laminated to form a transmissive screen 18 having a structure as shown in Fig. 12. The characteristics of the produced transmissive screen are shown in Table 5. The produced transmissive screen 18 is configured to have a structure The polarization transmission axis of the polarizing film 15 of the transmission screen 18 is parallel to the transmission axis of the projector. -53- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back first) (Fill in this page again) Order --------- Online-Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 409196 A7 B7 V. Invention Description () (Please read the precautions on the back before filling this page), When observing the projected plaque, almost no spots can be seen. Health, to obtain high-resolution, high contrast and bright image of high quality. Moreover, the reflection of external light has been reduced, and no moire or transparency has been seen or colored. • Experimental Example 15 The same members as in Experimental Example 12 were used, and each member was laminated from the inspection side in the order of the antireflection layer 17, the polarizing film 15, the light diffusion layer 13, and the transparent plastic plate 16 to make it as the first A transmissive screen 19 constructed as shown in FIG. The characteristics of the produced transmission screen 19 are shown in Table 5. The produced transmissive screen 19 is configured so that the polarizing transmission axis of the polarizing film 15 constituting the transmissive screen 19 is parallel to the transmissive sleeve of the projector, and when the projected image is inspected, speckles are hardly seen Production, and obtain high-resolution, sharp and high-quality images with high contrast. In addition, the reflection of external light has been reduced, and no moire, transparency, or coloring has been seen. * Experimental Example 16 The light diffusing material 13B used in Experimental Example 12 was replaced with a silicone rubber particle printed on the surface of rubber spherical particles printed by the staff consumer cooperative of the Intellectual Property Bureau of the Ministry of Economics and Silicone. Spherical coated particles of the resin layer (KMP600, manufactured by Shin-Etsu Chemical Co., Ltd., volume average particle diameter 5 / um, the refractive index of spherical particles of silicon rubber is 1.40, and the refractive index of polyorganosilsesquioxane resin is 1.42). The added amount occupies a concentration of 18 s / m2 in the transparent resin constituting the transmissive screen 14, and the thickness of the light diffusing plate is 0.36 μm. The rest is made in the same manner as in Experimental Example 12 and is composed as shown in FIG. 11 This paper size applies to China National Standard (CNS) A4 specification (210 ^ 297 mm) 409196 A7 B7 V. Description of the invention () Transmission type screen power 14. The characteristics of the produced transmissive screen 14 are shown in Table 5. The produced transmissive screen 14 is configured such that the polarizing transmission axis of the polarizing film 15 constituting the transmissive screen 14 is parallel to the transmitting axis of the projector, and when the projected circle image is examined, speckles are hardly seen , And obtain high-resolution, sharp and high-quality images with high contrast. The reflection of external light has been reduced, and no moire or transparency or coloring has been seen. • Comparative Example 1 0 The thickness of the light diffusing plate 13 manufactured in Experimental Example 12 was changed to 1.4 mra, and the rest In the same manner as in Experimental Example 12, a transmissive screen 14 configured as shown in FIG. 11 was fabricated. The characteristics of the prepared light diffusion layer 13 are shown in Table 4, and the characteristics of the transmissive screen 14 are shown in Table 5. The produced transmissive screen 14 is configured such that the polarization transmission axis of the polarizing film 15 constituting the transmissive screen 14 is parallel to the transmission axis of the projector, and when the projected awake image is observed. Due to the thickness of the light diffusion layer It is too thick, although the speckle is not generated, but the resolution (MTF) is as low as 5¾, and the image is not sharp. Comparative Example 1 1 The thickness of the light diffusing plate 13 manufactured in the spring test example 12 was changed to 0.2 μm, and the rest was made in the same manner as in the experimental example 12 to form a transmissive screen 14 as shown in FIG. 11. The characteristics of the manufactured light diffusing plate 13 are shown in Table 4, and the characteristics of the transmissive screen 14 are shown in Table 5. Configure the produced transmissive screen 14 so that the polarized light transmission axis of the polarized light 瞑 15 constituting the transmissive screen 14 is parallel to the transmission axis of the projector. -55- This paper standard applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the notes on the back before filling out this page) ---- 1 — I ---—-- 1-- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 409196 A7 _B7 Explanation of the invention (5 4) When inspecting the projected image, because the thickness of the light diffusion layer is too thin, although its resolution (MTF) is as high as 65¾, it is very bright, but it produces a lot of spots and displays difficult to see images. . The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs has printed on its radio screen, screen, and type 10 冓 Xu transparent screen, which has been shot by the @ 示 型 g 射 度 E-MM- The transmission rate is 4 and the transmission rate is low, but the number of transmissions is 4 and the table is set. Use ItHis to 4 and the S® to add 17Γ: If the machine point is changed, the Misr structure is changed into a machine. The epsilon / corresponding texture material m2 is shown as the structuring light image 65, which makes the material καωg / corresponding to make the projection material have 11 characteristics. In order not to disperse, WB65 is graphical, and the distributive line of the dissemination line is expanded. \ = M has 11 features. The light color of the line is expanded, as shown in the 13th place, the light is the first, and the first place is the flat shadow, which is a light grease plate, and 5 shafts. M), Zhongru 13's axis can be used to shoot a tree table. Although 14 shots are like shooting with a fat plate 514, you ^ make the scattered light like the scene through the picture. When the screen is expanded through the screen, the brightness is as low as the same light type when the screen is bright. When you see the neutron diameter through the expansion of the system, the polarization is lower. The 15-screen display microtrim 1412, which is an example of the same-light radiation, is made into a film shadow that is transparent to the dominant screen test 14, and a 12-scatter type. Mucheng Chengtou, 13 defeats were screened by the laboratory, 14% of them were shot, and the 14-screen darkening example was flattened. The power system partial X is more transparent than the screen type. The inspection of the light tree and the 14 screen is 34. The ratio of the screen will be 14 and the screen ratio will be 14. Residual screen and screen · B-screen screen with low screen -56-This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) nn J7 ϋ 1. II ϋ I— ϋ —J , ^ II * I— II ^ OJa fi ϋ n I 1 Γ— I IV (Please read the notes on the back before filling out this page >> Printed by the Intellectual Property Bureau Staff Consumer Cooperative of the Ministry of Economic Affairs 409196 A7 _B7 V. Description of the invention ( ^) [Table 4] Thickness of light diffusing layer (mm) Volume average particle diameter of light-expanding material (μm) Light-bulk bulk material concentration (g / mJ) Screen gain Go α 値 (degree) Experimental example 1 2 ~ 1 5 0.4 3. 5 35,0 1,0 40, 0 Test Example 16 0.36 5.0 18.0 1. 35 31.6 Comparative Example 10 1. 4 3.5 35. 0 1.0 40. 0 Comparative Example 1 1 0.2 3.5 35.0 io 40 0 Comparative Example 12 0.4 3.5 65. 0 0.4 57.0 Comparative Example 13 0, 4 6.0 65.0 io 32. 0 [Table 5] Go α 値 (degrees) Μ TF (%) Spots are transparent [see through light source] Polarization retention rate Contrast Spring test examples 12 0, 75 38.0 55 · 0 less 92.0 0.95 experiment 13 13 0. 65 37.5 30.0 less 92.0 0.95 experiment 14 14 0.75 38. 0 55.0 less 92.0 0. 95 experiment 15 15 0.75 38. 0 55.0 less None 92.0 0 * 95 Experimental example 16 1.10 29.6 85. 0 Less than 93, 0 0.96 Comparative example 10 0. 75 38. 0 5.0 Less 92.0 0. 95 Comparative example 1 1 0. 75 38.0 65.0 Less 92.0 0.95 Comparative example丨 2 0.40 53.0 35.0 Less than 90. 0 0. 90 Comparative Example 13 0.45 30. 0 53.0 Less than 34.3 a-η --- ^ ----------- ^ ----_--- -Order --------- Line (Please read the precautions on the back before filling in this page) This paper size is applicable _ National Standard (CNS) A4 (210 X 297 mm) 409196 A7 _B7_ V. Description of the Invention (5 6), * Comparative Example 1 4 The light diffusing material 13B used in the light diffusing plate 13 was changed to spherical spherical microparticles made of silicone resin (Toshiba Silica Co., Ltd. Dusba granules 3 1 2 0, volume average particles) Diameter 12. Ouni, refractive index 1.42), the added amount of which accounts for 70g / m2 concentration in the transparent resin constituting the transmissive screen 14, and the rest is made in the same manner as in Experimental Example 12 and the transmission is formed as shown in Fig. 11 Screen 14. The screen gain (G0) of the fabricated light diffusing plate 13 was 5.8, and the alpha value was 13.1 degrees. The transmission-type screen 14 is configured such that the polarization transmission axis of the polarizing film 15 constituting the transmission-type screen 14 is parallel to the transmission axis of the projector, and when the projected image is viewed, the particle diameter of the light diffusing material Too large, it has poor light diffusivity and narrow viewing angle. Comparative Example 1 5 The light diffusing material 13B used in the light diffusing plate 13 was changed to spherical particles made of silicone resin (Toshiba Silica Co., Ltd. Dusba particles 105, volume average particle diameter 0.5iiro, refractive index 1.42). The added amount occupies a concentration of 70 g / tn2 in the transparent resin constituting the transmissive screen 14, and the rest is the same as in Experimental Example 12 and a transmissive screen 14 having a structure shown in FIG. 11 is produced. The transmission-type screen 14 is configured such that the polarization transmission axis of the polarizing film 15 constituting the transmission screen 14 is parallel to the transmission axis of the projector, and when the projected image is viewed, the particle diameter of the light-diffusing material is observed. Too small, so the image is tinted yellow, and a transparent feeling is also seen. • Experimental Example 17 -5 8-This paper size is applicable to the national standard (CNS) A4 specification (210 X 297 mm) (Please read the precautions on the back before filling this page) ---------- Xu · I ----- I. Consumption cooperation by employees of the Intellectual Property Bureau of the Ministry of Economic Affairs, printed by A7 409196 B7_ V. Description of the invention (57) On the light source side of the transmissive screen 14 made in Experimental Example 12, When a linear Fresnel lens with a focal length of 500 mm is arranged, and the manufactured transmissive screen is configured so that the polarizing transmission axis of the polarizing film constituting the transmissive screen is parallel to the transmitting axis of the projector, and when observing the projected image, The brightness of the four corners of the transmissive screen is increased, and beautiful images are displayed. • Inspection example 1 8 ~ 22 The manufacturing of light diffusing plate is made of methacrylic resin (acrylic Vite it Mitsubishi VH it 0 0 1, refractive index 1. 4 9), which will be in silicon_ Spherical coated particles of a resin layer made of polyorganosilsesquioxane resin are formed on the surface of the spherical rubber particles (Shin-Etsu Chemical Industry Co., Ltd. KMP600, the volume average particle diameter is 5wm, and the refractive index of the silicone rubber spherical particles is 1.40, Polyorganosilsesquioxane resin with a refractive index of 1.42, JIS A hardness of 30) is added to the concentration shown in Table 6 and made into a light diffusing plate by extrusion. The light diffusing material is very Easy to disperse in methacrylic resin without seeing aggregation. In the produced light diffusing plate, no aggregate of light diffusing material was found, and no accumulation of resin was generated at the exit portion of the extrusion die, and the light diffusing plate could be manufactured in a stable and stable manner. The optical characteristics of the manufactured light diffusing plate are shown in Table 6, and the relationship between the screen gain (Go) and the α value or the Lu value is shown in FIG. 18. • Comparative Examples 16 to 17, Reference Examples 2 to 6

In methacrylic resin (Acrylic Vite -59 of Mitsubishi Seki Corporation) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling in this (Page) Τ ------ Order --------- line, printed by A7 409196 B7_, Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs V. Description of Invention (58) «001, refractive index 1.49), Spherical microparticles made of polyorganosilsesquioxane resin (product of Shin-Etsu Chemical Industry Co., Ltd. X52-1186, average body diameter 3.5Win, polyorganosilsesquioxane resin refractive index 1.42) are added to the light diffusing material It was made into the density | concentration as shown in Table 6, and it was set as the light-diffusion plate by M extrusion method. The light diffusing material was easily dispersed in the methacrylic resin, and no aggregation thereof was observed. However, with the change of time from the start of extrusion, a large number of tree gambles are accumulated at the exit of the extrusion die and accumulated. As a result, the appearance of the light diffusing plate is poor, and it is difficult to continuously and stably produce the light diffusing plate. The optical characteristics (Tt is the total light transmittance) of the prepared light diffusing plate are shown in Table 6, and the relationship between the screen gain (Go) and the α value or / 3 value is shown in FIG. 18 . --- ^ ----------.--- Order --------- line (Please read the notes on the back before filling this page) Intellectual Property of the Ministry of Economic Affairs Printed by the Bureau ’s Consumer Cooperatives -60- This paper size applies to the Chinese National Standard < CNS) A4 Specification (210 X 297 mm) Printed by the Employees ’Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 409196 A7 _B7 V. Description of Invention (Π) Reference Example 6 Reference Example 5 m Μ Reference Example 3 Reference Example 2 Comparative Example 17 Comparative Example 16 i Test Example 2 2 Experimental Example 2 1 Experimental Example 2 0 Experimental Example 19 Experimental Example 18 —X · — Cn coto 0¾ 1! Χ52 ~ 1 186 X52- 1186 X52- 1186 X52- 1186 * — * X 一 ς / Ί OQ oo 1 —X «— cn OO rsa CJ1 1 KMP6 00 KMP6 00 KMP6 00 KMP6 00 KMP6 00 Kind of optical expansion material O Cs9 ΟΟ tn CO to o C-3 < £ > o oo Office σ > < 〇CO 〇〇OO 〇OO cn O cn Addition (g / β1) ο < = > ο CC CJ1 ο Cn Ο oc = > 〇〇ac ^ o CO ο Cs3 Ο o t > doo CO σ > 0. 60 o tn C3 t3 > C7 > thickness (mm) 89. 3 οο 〇〇〇〇〇〇 CO CD oo 78.0 CO C £ > o tO oo CO CO cn —Ϊ < 7 > cn CO Optical media transmittance (%) οο οο 〇〇0〇Οΐ ΟΟ CD CO CO to c〇OO ① c〇to Cn OQ to cn oo 〇Q to OQ CD hth. Oo < 〇tn 〇〇to OO 〇ΐσ > Turbidity (%) 1 2.68 2, 80 cn CO CO tcs to o O 1-0 o oo Cn CO c ^ > CO cn o oo oo ο tn σ > i screen gain Go 1_ CZ > Ο ο CO cc C / l CO o CO tO cn c〇—J o C5 C / l oo -4 CO cts to —ao cn CO o α 値 (degrees) 1_ ESA < η tO 0¾ (£ > CO —1 c 〇C_0 0¾ Office CO c〇CO cn tO OO CO cn oo tn 4 »-* 4 tn CO oo cn CO —0 / 3 値 (degrees) 1_ -Μ _ --- Hui I Ί I — IIIIIIT-ΐ III- I [II I --- II I--I (please read the precautions on the reverse side before filling out this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) A7 409196 B7_. 5 Description of the invention (6Q) • Experimental examples 23 to 24, comparative examples 18 to 20 The tannin of guangnan parts board is made of methacrylic resin (Acrylic Vite # 001, product of Mitsubishi Sakai Corporation, refractive index 1.49 ) .Polyorganosilsesquioxane resin will be formed on the surface of silicone rubber spherical particles The spherical coated particles of the resin layer (KMP600 manufactured by Shin-Etsu Chemical Industry Co., Ltd., the volume average particle diameter of the silica gel rubber spherical particles has a refractive index of 1.40, the refractive index of the polyorganosilsesquioxane resin is 1.42, and the JIS A hardness is 30). The light diffusing material was added to the concentration shown in Table 6, and a light diffusing plate was produced by the K-extrusion method. At any concentration, the light diffusing material is easily separated from the methacrylic resin, and no aggregation is seen. The produced light-diffusing sheet did not emit aggregates of light-expanding materials, and did not cause resin accumulation at the exit portion of the extrusion die. The light-diffusing sheet was continuously and stably manufactured. The mechanical strength of the produced light diffusing layer is shown in Table 7. [Table 7] ΊΙΙΊΙΙΙΙ-lfln-i III .1 II ---- I ----- (Please read the notes on the back before filling this page) The thickness of the light diffusion material printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (am) 50¾ Breaking energy (J) Easy-type impact strength (KJ / HI 2) Type addition amount (g / m!) Experimental example 23 KMP600 35. 7 3.0 1. 1 0.84 Experimental example 24 KMP600 71.4 3.0 2. 1 0. 81 Comparative Example 18 KMP600-3.0 1.4 .48 0.48 Comparative Example 19 KMP600 107.1 3.0 1.9 0. 84 Comparative Example 2 0 KMP600 178.5 3. 0 2.0 0. 83 This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 409196 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (61) Tables 6 and 7 show that when the light diffusivity of the light diffusing plate according to the experimental example of the present invention is It has the same light diffusivity as the light diffusing plate of the light diffusing material in which the silicone fluorene resin fine particles were added in Comparative Examples 16, 17, and Reference Examples 2 to 6. Further, in the light diffusing plate of the present invention, no resin is accumulated at the discharge port of the extrusion die, and the light diffusing plate can be continuously and stably produced, and the impact strength can be greatly improved. • Experimental Example 25 The disadvantages of the light eaves failure plate are added to a methacrylic resin (Acrylic Vite «001, refractive index 1.49 by Mitsubishi Screw Co., Ltd.), adding 7.7 weight S: (： 1.85g / m2 ), Spherical coated particles of a resin layer composed of polyorganosilsesquioxane resin are formed on the surface of spherical particles of silicone rubber (Shin-Etsu Chemical Industry Co., Ltd. KMP600, volume average particle diameter 5 × / ιπ, silicon tincture) A light-diffusing material with a refractive index of 1.40 for rubber spherical particles, a refractive index of 1.40 for polyorganosilsesquioxane resins, and a JIS A hardness of 30). The K-extrusion method was used to produce a light-diffusing sheet with a thickness of 0.2 mm. The characteristics of the manufactured light diffusing plate are a total light transmittance of 83.3¾, a turbidity of 89.3¾, a screen gain (Go) of 1.4, an α value of 31 degrees, and a / 9 value of 41 degrees. On the side of a transparent methacrylic resin plate (Mitsubishi Sealing Co., Ltd.'s acrylic # 001) which is a transparent plastic plate 16 with a thickness of 4 in. An anti-reflection film is formed on one side of the allyl- (TAC) film, and an adhesive layer is formed on the other side as an anti-reflection film of the anti-reflection layer 16 (product of Japan Oil Wax Corporation, trade name Mile Aluk 2201). This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) II ---- I--r4 ··: ---------- Order --------- line (Please read the notes on the back before filling this page) A7 409196 B7 V. Description of the invention (62) (Please read the notes on the back before filling this page) Adhesive layer M lamination method for K lamination. On the other side of the translucent plastic plate 16 on which one side of the anti-reflection layer 17 has been laminated, polarized light is made (product of Boradina Corporation, trade name 0182421 \ polarized light 99.99%, and the single light transmittance 42S :), the polarizing light transmission axis is parallel to the transmission axis of the above-mentioned liquid crystal projector, the M lamination method is used to laminate the M light, and then the light diffusion plate manufactured as described above is laminated and integrated to make The transmissive screen 14 is constructed as shown in FIG. Although the thickness of the light diffusing plate 13 is only 0.2 mm, its impact strength is high, and therefore it is easy to laminate by a lamination method. As a result of measuring the characteristics of the produced transmissive screen, the screen gain (G 0) was 1.2, c (value was 29 degrees, / 3 value was 39 degrees, and the viewing angle was wide. As a result of observing the actual projection image, since the transmission axis of the polarized light of the polarizing film and the polarization axis of the projection light of the projector are in the same direction, the projection light loss is minimized, and A high-contrast transmissive screen. • Experimental Example 26 Printed with a thickness of 4mKt of a transparent methacrylic resin board (product of Mitsubishi Seiko Co., Ltd., trade name: Acrylic # 特) The light-transmitting plastic plate 16 and the light-diffusing plate 13 made in Experimental Example 25 are integrated by thermocompression bonding, and the same anti-reflection layer 17 and the same as those used in Experimental Example 25 are integrated. The same polarizing film 15 used in Test Example 25 was made such that the polarizing light transmission sleeve was parallel to the transmission axis of the above-mentioned liquid crystal projector, and laminated by a laminating method via an M adhesive layer. The integrated board was as described above. Translucent plastic plate 16 and light diffusing plate 13 Through the adhesive layer, the lamination method * layer is used to make a transmissive screen 18 constructed as shown in Figure 12. The produced—6 4 a paper size is applicable to China National Standard (CNS) A4 specifications (210 x 297 mm) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 409196 A7 _B7 V. Description of Invention (63) The characteristics of the transmission screen are the same as those of Experiment 25. • Experiment 27 Translucent plastic The board is changed to a thickness of 4 ^. And the dye M is added as a light absorber, and its total light transmittance is 79¾: a colored methacrylic resin board (product of Mitsubishi Electric Corporation, trade name: Acrylic fl099), In addition, a polarizing film was not used, and the rest were fabricated with the same members and methods as those in Experimental Example 25 to form a transmissive screen having the structure shown in FIG. 14. As a result of measuring the characteristics of the produced transmissive screen, The screen gain (Go) is 1.0, c (the value is .28 degrees, the calling value is 37 degrees, and it has a wide viewing angle. In addition, the actual projection image plus M observation results, because the use of light absorbers Dye) of transparent plastic sheet Contrast-type transmissive screen. Experimental Example 28 A colored methacrylic resin panel (Mitsubishi Corporation) with a thickness of 4 mm and a dye M as a light absorber as a light-transmitting material board with a total light transmittance of 64¾. Product of Purple Co., trade name: Acrylic # 97), light diffusion plate made by Heyin Test Example 25, integrated by thermocompression bonding, and on the observation surface side of the integrated plate, Via the K adhesive layer, the M lamination method laminated the same antireflection layer as that used in Experimental Example 25 to M to form a transmissive screen composed as shown in FIG. 14. For the produced transmissive screen, As a result of the characteristics measurement, the screen gain (G 0) is 0.9, the alpha value is 28 degrees, and the lu value is 37 degrees, and the viewing angle is very wide. In addition, as a result of observing the actual projected image, since a translucent material board having a total light transmittance of 70¾ or less is used, -65- This paper is in accordance with the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ^ IIIIIIIT ^-1 II I .-- J Order --------- 1, ^ (Please read the notes on the back before filling this page) A7 B7 409196 V. Description of the invention (64 ) Obtain a transmissive screen with high contrast. [Effects of the Invention] The transmissive screen of the present invention has the structure as described above, so it does not generate speckles. It has the characteristics of obtaining a high-resolution projection image, and it has a small size of 1 to 4 and 4 When the projector with high brightness is used in combination, it can also obtain a sufficient field of vision in both the horizontal and vertical directions without using a double lens that enlarges the viewing angle only for any of the horizontal and vertical directions. angle. In addition, since no double lens is used, no moire of the LCD or DMD due to the double lens is generated, and no double lens with fine pitch is used, which is easier to manufacture and handle. In addition, the present invention can provide a light-expanding plate whose light-diffusing particles have excellent dispersibility in the light-transmitting resin, and which are excellent in impact strength, light-transmitting property, and light-diffusing property, and its impact. A transmissive screen with excellent strength and light transmission, and a wide viewing angle. [Brief description of the drawings] Fig. 1: A sectional view of a structural pattern part of a transmissive screen of Experimental Example 1 of the present invention. Fig. 2 is a sectional view of a part of a transmission mode screen in Experimental Example 2 of the present invention. Fig. 3 is a sectional view of a part of a transmission mode screen in Experimental Example 3 of the present invention. Fig. 4 is a sectional view of a part of a transmission mode screen in Experimental Example 4 of the present invention. Fig. 5: Structure mode part of transmission screen of Experimental Example 5 of the present invention -66- This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm). I ------ 1, ' Pack two! ------ Order --------- line (please read the precautions on the back before filling this page) Printed by the Consumers' Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs A7 409196 B7 _; _ 5. Description of the invention ( 65) Sectional view. Fig. 6 is a sectional view of a part of a transmission mode screen of Experimental Example 6 of the present invention. Fig. 7 is a horizontal sectional view of the structure of a transmission screen of Experimental Example 7 of the present invention. Fig. 8 is a sectional view of a part of a transmission mode screen of Experimental Example 8 of the present invention. Fig. G: Partial sectional drawing of the structural pattern part of the transmissive screen of Experimental Example 9 of the present invention. Fig. 10 is a sectional view of a part of a transmission mode screen in Experimental Example 10 of the present invention. Fig. 11 ... Partial cross-sectional view of the structural mode of the transmissive screens of Experimental Examples 11 and 14 of the present invention. Fig. 12 is a sectional view of a part of a transmission mode screen of Experimental Example 12 of the present invention. Fig. 13 is a sectional view of a chess-like portion constituting a transmissive screen of Experimental Example 13 of the present invention. Fig. 14: A cross-section of a configuration mode part of a transmission type screen of Experimental Example 16 of the present invention. Fig. 15 is a diagram showing a measurement mode of polarization degree retention of a transmissive screen of the present invention. Fig. 16: Schematic diagram of a contrast measurement example of a transmissive screen according to the present invention. Fig. 17: Schematic cross-section drawing of spherical coated particles of Test Example 15 of the present invention. Figure 18: Example of a light-diffusing sheet using spherical coated particles of the present invention -67- This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm)-! --------- ---- ^ · ϊ -------- Order --------- Line 1 (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Description of the invention (66 A7 B7 Screen gain (G 〇) and line diagram of the test and comparative examples. The relationship between the value of the symbol and the value> 5 Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and printed by the Consumer Cooperative 1st light Diffusion layer 1 A 1st base material 1 B 1st light expansion material 2 2nd light diffusion layer 2A 2nd base material 2B 2nd light diffusion material 3 Linear Fresnel lens 4 Linear Fresnel mirror Η 5 Light transmission Plastic layer 6 P7TΠ Light film layer 7 First light diffusing layer 7A First base material 7B First light diffusing material 7C Linear Fresnel lens 8 Adhesive layer 9 Bi-rml optical film layer 10 Adhesive layer 11 Second light diffusing layer 11 A 2nd base material Material 11B 2nd light diffusing material 12 transparent plastic layer -68- (Please read the precautions on the back before filling out this page) Kernel paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm) 409196 a7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description (67) I 2 A Transparent plastic base material I 3 Light diffusing layer 13A Transparent resin (light transmitting resin I 3B Light diffusing material (film) I 4 m transmissive screen I 5 partial ηη > light film layer I 6 transparent plastic layer I 7 anti-reflection layer I 8 transmissive screen 19 transmissive screen 20 transmissive screen 21 linear Fresnel mirror Η 22 photosphere 23 transmission Type screen 24 polarized light m 25 light meter 26 light diffusive ball bark coating particles 27 silicon m 糸 rubber ball 肜 particles 28 resin layer -69----------- III '1 IIJI— II-^ — — — — — — — It n (Please read the notes on the back before filling this page) This paper size is applicable to China Associate (CNS) A4 size (210 X 297 mm)

Claims (1)

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 409196 A8 B8 C8 D8 VI. Patent Application Scope 1. A transmissive screen is an optical image institute formed on a light sphere formed by a pixel display unit with a matrix configuration A projection type transmission screen is characterized by having at least a first light diffusing layer and a second light diffusing layer; and the first light diffusing layer on the upper side is made of a first base material of a translucent resin and contains 20 to 50 The first light diffusing material having a weight, a refractive index difference from the first base material of 0.07 to 0.17, and a weight average particle diameter of 1 to 12 μm is composed of a first light diffusing material having a thickness of 50 to 2O0aa; the second light diffusing layer is It is composed of a second light diffusing material containing fine particles having a weight average particle diameter of 1 to 12 m in a second base material of a light-transmitting resin, and has a thickness of 500 to 5000 Wnt; and the turbidity of the second light diffusing layer described above. The degree is 50 ~ 85 »:. 2. A transmissive screen, which is a transmissive screen that is projected by an optical image formed on a matrix of pixels arranged on a light ball of Gu Shiji. Its special excitation is: at least a first light diffusion layer and a second The light diffusing layer; the first light diffusing layer is made of a light-transmitting resin in a first base material, containing 20 to 50 weights of children, having a refractive index difference from the first base material of 0.07 to 0.17, and a weight average. The first light diffusing material is composed of fine particles having a particle diameter of 1 to 12 / itt, and the thickness is 50 to 200 ^ «!; The second light diffusing layer is composed of a second base material of a translucent resin, and contains The second light diffusing material is composed of 0.1 to 10.0% by weight and fine particles having an average particle diameter of 1 to 1 and a thickness of 500 to 5000 μm. -70- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ------------- ^ ^ --- II I ^ --- 1 --- -(Please read the precautions on the back before filling out this page) 409: 96 A8 B8 C8 DB VI. Application for patent scope 3. For the transmissive screen with the scope of patent application No. 1 or 2, among which, the above-mentioned first light diffusion And the second light diffusion layer 傜 are bonded to the ft layer. 4. If the transmissive screen of item 1 or 2 of the patent scope is applied, among them, the employee cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs has printed resin 5. The surface of the surface is 6 if it is applied. The surface is 7 if it is applied. 8 · If the application is in the first layer 9, if the application is in 10. If yes, the first base material and the second base material mentioned above are composed of the same. The transmission screen of item 1 or 2 of the patent scope, wherein the first light diffusion layer and the second light diffusion layer are on the opposite side, or the second light diffusion layer and the first light diffusion layer are on the opposite side. Forming a linear Fresnel mirror. The patent-type transmission screen of item 1 or 2 of the patent application, wherein the first light diffusion layer is opposite to the second light diffusion layer, and the linear Fresnel lens body is arranged. The transmissive screen according to item 1 or 2 of the patent, wherein a transparent plastic layer is provided between the first light diffusion layer and the second light diffusion layer. The transmissive screen according to claim 1 or 2, wherein at least one of the first light diffusion layer and the second light diffusion layer includes a light absorber. The transmissive screen according to item 7 of the patent, wherein the translucent plastic layer contains a light absorber. Transmissive screens in the scope of patent application No. 1 or 2, which are combined -71- This paper size is applicable to Chinese National Standard (CNS) A4 (210 X 297 mm) Please read it first. Note on the back before filling out this page I Itr II 409196 A8 B8 C8 D8 Applicants for patent scope of light film layer Application for patent description Polarizing film polarized 1 1 · As above 1 2. If the patent application is printed at least in one of the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economic Affairs 13. — Transparent In photometric polarized light 14. As in the photogenic layer 15. As in the above distance 16. As in this, the first light of the transmission-type transmissive screen with diffused loading is 96¾M film layer and the first photo-adhesion described in the patent application Between the layers is the table screen of the first patent application of the above-mentioned first and second optical expansion to less than 1. The first optical expansion of the patent application contains the second light composed of the folded material, and the surface of the polarized range of its range. , Its special diffusion layer is polarized with 2 light spreading range, the diffusion layer is bonded, and 2 light transmission range is the light diffusion layer with 5 m as (the range of the diffusion layer is the emissivity is; the diffusion layer refractive index of 10 items is transparent The transmittance is 9 6 ϊ; the surface of M 1 or 2 is formed to prevent it from being projected by · ′ and the second light-expanding 瞑 layer, and the scattered layer is stacked by the 13-item transmission and the above-mentioned light and the above-mentioned polarized light. The transmissive layer of the 13th item of the film adhesive layer, the above, and the above-mentioned polarizing screen, among which, the above. The transmissive screen, in which the antireflection layer. The optical garden astigmatism layer on which the light is projected is arranged It is polarized by these first light diffusing layers and layers. Type screens, in which the film layers are bonded by the first transparent layer and the above-mentioned second optical expansion. Type screens, in which the polarizing film layer is opposite to the light to the light The transmissive screen of 13 items between the opposite sides of the film layer, wherein the first light different from the first base material of the light-transmitting resin and the first base material is the second base material of the light-transmitting resin It is different from the first base material. 2 -72- This paper size is applicable to Chinese National Standard (CNS) A4 (210 x 297 mm). Please read the notes on the back before filling out this page. II. Printed by the Property Cooperative Consumer Cooperative 409196 郃 C8 D 8. The scope of the patent application is composed of light diffusing material; and the above-mentioned first base material and the above-mentioned second base material are made of the same resin. 17. For example, the transmissive screen of the scope of patent application No. 13 wherein the above-mentioned 1 The light diffusing layer is composed of a first base material of a light-transmitting resin, containing 20 to 50% by weight, a refractive index difference from the first base material of 0.07 to 0.17, and a weight average particle diameter of 1 to 12 μm. The light-expanding material has a thickness of 50 to 200 «m, and the second light diffusing layer is made of a light-transmitting resin-based second base material containing light having a weight-average particle diameter of 1 to 12ϋΐη. Consisting of a diffusing material, its turbidity is 50 ~ 85%, and its thickness is 500 ~ 1200w. 18. The transmissive screen according to item 13 of the scope of patent application, wherein the surface of the first light diffusing layer opposite to the polarizing film layer is formed as a Fresnel mirror surface. 19. The transmissive screen according to item 13 of the patent application, wherein an anti-reflection layer is formed on the surface of the first light diffusion layer opposite to the polarizing film layer. 20. The transmissive screen according to item 13 of the scope of patent application, wherein a transparent plastic layer is bonded to the second light-expanding layer on the opposite side of the polarizing film layer. 21. The transmissive screen of claim 20, wherein the translucent resin constituting the translucent material layer, the first base material, and the second base material are made of the same resin. -73- This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) Order --------- line · 409196 stuffing C8 D8. Patent application scope 22. The transmissive screen according to item 20 of the patent application scope, wherein the anti-reflection layer is formed on the surface of the transparent plastic layer opposite to the second light diffusion layer. 23. The transmissive screen of claim 20, wherein at least one of the first light diffusing layer, the second light scattering layer, and the translucent plastic layer contains a light absorber By. 24. A transmissive screen, which is a transmissive screen that is projected by an optical image formed on a light sphere formed in a pixel display portion with a matrix configuration, and is characterized by:. Dispersed in a translucent resin A light diffusing material having a concentration of 10 g / m2 to 60 g / ra2 and a refractive index difference from the above-mentioned translucent resin (K05M, a volume average particle diameter of 1 to 8 wm, and a thickness of 0.3 to 1.2 mm A light-diffusing layer; and a polarizing film layer. 25. For example, a transmissive screen of the 24th scope of the patent application, wherein the polarization degree of the above-mentioned polarizing film layer is the above 96¾M. 26. The 24th scope of the patent application scope The transmissive screen includes a translucent plastic layer. 27. The transmissive screen according to item 26 of the patent application, wherein the translucent plastic layer contains a light absorber. 28. If applying The transmissive screen according to item 27 of the patent, wherein the total light transmittance of the transparent plastic layer is 40 to 80. 29. For example, the transmissive screen according to item 24 of the patent application is formed on the surface. Those with anti-reflection coating. China National Standard (CNS) A4 Specification (210 X 297 male f) (Please read the unintentional matter on the back before filling this page) ------- Order --------. The consumer cooperation of the staff of the property bureau Du printed by the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed 409196 storage C8 D8 VI. Application for a patent scope '30_ If you apply for a transparent screen of the 24th scope, the above light diffusion layer is configured On the light source side than the above-mentioned calendering film layer. 31. For example, the transmissive screen of item 24 of the scope of patent application, where! The above-mentioned light diffusion layer and the above-mentioned calendering film layer are adjacent to each other. 32. If a patent is applied for The transmissive screens of the range 26, from the light source side, are laminated in the order of the light diffusion layer, the transparent plastic layer, the calender film layer, and the anti-reflection layer. 33 For example, if the application of the transmission screen of item 26 of the 圔 Li Fan 圔, its image, starting from the light source, according to the order of the light diffusion layer, the light film layer, the transparent plastic layer, and the anti-reflection layer. "Layer. 34. If you apply for the transmissive type of benefit range item 26 The curtain, which is false, is laminated from the light source in the order of the above-mentioned transparent plastic layer, the above-mentioned diffusion layer, the above-mentioned light-repellent film layer, and the anti-reflection layer. The transmissive screen according to item 24, in which fine unevenness is formed on the surface of the light diffusion layer. 36. For the transmissive screen according to item 24 of the patent application scope, wherein the retention rate of the optical power is 855; the above β 37. A transmissive screen, which is a transmissive screen of an optical image projected by the projection light. It is to be arranged as a polarizer between the optical expansion layer and the transparent plastic layer. It is 36J: the above maple light film layer, and these light diffusing film, light-damping film layer and transparent plastic layer are laminated "38. For example, the transmission screen of the 37th category of the patent application, where -7 5- This paper size applies to China National Standard (CNS) A4 (210x297 mm). ^ 1 U ^ 1 ^ 1 ϋ f ^ —Η n Bi Met I ^^^^ 1 _ (Please read the precautions on the back first (Fill in this page again) 409196 I D8 VI. The scope of patent application The above light diffusion layer and the above polarizing film layer are The polarizing film layer and the translucent plastic layer are adhered by the first translucent adhesive layer, and the polarizing film layer and the translucent plastic layer are adhered by the second translucent adhesive layer. 39. The transmissive screen according to item 37 of the patent application, wherein the thickness of the light diffusion layer is 0.4 ~ 1.ΐιππι. 40. The transmissive screen according to item 37 of the application, wherein the light diffusing layer is a base material of a light-transmitting resin and contains a light diffusing material having a refractive index different from that of the base material; and the light diffusing layer The base material and the translucent plastic layer are made of the same resin. 41. The transmissive screen according to item 37 of the application, wherein at least one of the light diffusing layer and the light-transmitting plastic layer includes a light absorber. 42. For example, the application of the transmission screen of item 41 in the scope of benefit, wherein the light-transmitting plastic layer contains a light absorber and its total light transmittance is 40 to 80¾. 43. For a transmissive screen with the scope of patent application No. 37, which is printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). Any one of the surface opposite to the layer and the surface of the transparent plastic layer opposite to the polarizing film layer is a Fresnel mirror surface. 44. The transmissive screen according to item 37 of the scope of patent application, wherein the transparent plastic layer is on the opposite side of the polarizing film layer, and the light diffusing layer is on the opposite side of the polarizing film layer. Either side forms an anti-reflection layer. -76- This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X297 mm). It is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 4．09ΐ9β g D8 6. Application for patent scope 4 5. The light diffusing plate is formed by forming a resin layer on the surface of the silicon mesh and rubber spherical fine particles, and M is formed into light diffusing coated particles having a volume average particle diameter of 1 to m, and The light diffusing coated particles M are formed in a light-transmitting resin having a refractive index difference of 0.06 M from that of the spherical silicone microspheres with a concentration of 0.01 to 100 g / m 2. 46. The transmissive screen according to item 45 of the application, wherein the resin layer formed on the surface of the above-mentioned silicon rubber-based spherical microparticles is a polyorganosilsesquioxane-based resin. 47. The transmissive screen according to item 45 of the scope of patent application, wherein the JIS A hardness of the above-mentioned silicone rubber-based spherical microparticles is less than 60. 48. The transmissive screen according to item 45 of the patent application, wherein the translucent resin contains a light absorber. 49. If the transmission type screen of claim 45 is applied, it is a pseudo-container that uses the light diffusing plate as the light diffusing layer. 50. The transmissive screen according to item 49 of the patent application park, wherein the light diffusion layer is laminated on at least one surface of a light-transmitting plastic layer to form an integrated body. 51. The transmissive screen according to item 50 of the scope of patent application, wherein the light-transmitting plastic layer contains a light absorber, and its total light transmittance is 40 to 80 S. 52. If the transmission type of the patent application is No. 50, it is -77- This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling in this Page) Order --------- line. 409196 A8 B8 C8 D8 VI. Patent Application Scope Printed and dazzled by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 53. As above 54. Such as from anti-reverse 5 5. As In light transmission 5 6. Such as 57. Such as from plastic 58. Such as from light film 5 9. As above cast 60. The above is formed with an anti-and hard coating layer. Patent application is described. Light diffusion application patent. Patented upper light transmittance is 40 ~ Applicable for patent. Translucent plastic is applied. Patented light source upside down layer, and anti-patented light source side uprighted layer, and anti-patented polarized film are described. Patented patented fistula pre-film. The first layer of the range in the anti-reflection is the first range of the range, and the range of the plastic 70X is the range of the material layer. Polarization layer, polarizing film in the first layer of the range , Antistatic layer, an anti least one person. The 49-type transmissive screen, which is placed on the most light source. 5 3 items of transmissive screen, including light diffusion layer, light transmission, plastic layer and anti-integration. The transmission screen of item 5 contains a light absorber in the layer, and the entire light transmission of item 5 5 is transmitted. The transmission of item 3 of the light diffusion layer is stacked. The transmission of the light diffusion layer of item 3 of 3 is In order to stack 57 or 58 type screens, the rate is 40 ~ screens, the polarizing film layer and the single screen, the light-transmitting layer and the integrated transmission screen are oriented in the direction of the light transmission axis. Among the light, 6 5S; The other thing is the layer, the translucent person. Its system, plastic layer, polarizer. Please read the projection of the light source first. Note on the back side and then fill in this page. The 57 or 58 items with the same brightness are 96 × transmissive screens. Among them, the above β applies to national standards (CNS) ) A4 size (210 X 297 mm)