CN1896774A - Fly's-eye lens sheet, transmission screen and rear projection image display device - Google Patents

Abstract

The present invention provides a fly's-eye lens sheet and its produce method. It can achieve high transmittance and high contrast in the transmission screen of a rear projection image display apparatus. A photosensitive adhesive layer 14 is formed on an opposite principal surface of a fly-eye lens sheet having fly-eye lenses 12 formed on one principal surface; the photosensitive adhesive layer 14 is irradiated with UV rays through the fly-eye lenses 12 to form an adhesive/non-adhesive pattern in the photosensitive adhesive layer 14. A black color transfer film 19, having a black color layer 17 containing carbon particles by 45 wt.% to 65 wt.% on one principal surface of a support 18, is brought into contact with the surface of the photosensitive adhesive layer 14 and is peeled therefrom. Thus, a fly-eye lens sheet, having a light-shielding layer 15 that has two-dimensionally formed transmitting portions 15a can be produced.

Description

Fly lens sheet and manufacture method, rear projection screen, rear projection image display device

Technical field

The present invention relates on an interarea, be provided with fly lens, on another interarea, be provided with fly lens sheet and manufacture method, rear projection screen and the projection type image display apparatus of the band light shield layer of light shield layer.

Background technology

In the past, the known image display device that has optical elements such as using liquid crystal to show the image that the transmitted light from light source has been out of shape.In these image display devices, there are the following problems: the outer light such as fluorescent light that are positioned at observer's one side reflect on the display surface of image display device, and the contrast of image light reduces, image quality descends.

In order to improve the contrast of image light, have method that improves image light source intensity or the method that reduces the external light reflection of image display device, but in order to show the depth degree or to have the dark color of texture, back one method promptly suppresses the method particular importance of the external light reflection of image display device.

For example, in the rear-projection TV of extensively being paid close attention in recent years (rear projection (transmission) type image display device), has high-transmission rate in order to make with respect to image light from light source, and suppress outer reflection of light rate, use to have and simultaneously go up the rear projection screen (consulting following patent documentation 1) that forms cylindrical lens, on another face, forms the light shield layer (black-tape) of light outside absorbing.

In addition, for positional precision on the cylindrical lens sheet forms light shield layer well, the manufacture method of the rear projection screen of known usability photosensitiveness bonding coat (consulting following patent documentation 2).This method at first forms the photonasty bonding coat in sightingpiston one side of lens.In the photonasty bonding coat, use by carrying out the eurymeric bonding agent that sensitization disappears cohesive.Then, from the sensitization sources such as lens face one side irradiation ultraviolet radiation of lens, photonasty/bonding coat is exposed.Thus, the light collecting part generation sensitization of photonasty bonding coat and lose cohesive.Then, paste the black layer that is supported the base material supporting being formed with on the photonasty bonding coat of bonding non-bonding patterns, peel off supporting substrate then, thereby black layer is transferred on the bonding patterns of photonasty bonding coat.By said method, on the sightingpiston of lens, form the light-shielding pattern of regulation shape.

Patent documentation 1: the spy opens flat 10-293362 communique

Patent documentation 2: the spy opens flat 9-120102 communique

Summary of the invention

But, in recent years,, in rear projection screen, wish the display image high-contrastization along with the height of display image becomes more meticulous.In order to realize the high-contrastization of image, must when reducing, the transmissivity that suppresses image light improve the area occupation ratio of light shielding part, will be formed at the transmissive portions miniaturization on the light shield layer simultaneously.

The present invention makes in view of the above problems, its purpose is to provide a kind of can improve the area occupation ratio of light shielding part when the transmissivity that suppresses image light reduces, and can realize fly lens sheet and manufacture method, rear projection screen and the projection type image display apparatus of the band light shield layer of transmissive portions miniaturization.

In order to address the above problem, the fly lens sheet of band light shield layer of the present invention comprises: the fly lens sheet that is provided with fly lens on an interarea; The light shield layer that on another interarea of fly lens sheet, is provided with; Photonasty bonding coat with the bonding/non-bonding patterns that between fly lens sheet and light shield layer, forms, above-mentioned light shield layer comprises the light shielding part that is formed on the above-mentioned bonding patterns, be formed on the above-mentioned non-bonding patterns and make the transmissive portions of the light transmission that sees through above-mentioned fly lens, above-mentioned transmissive portions be arranged on the corresponding position of the formed light collecting part of above-mentioned fly lens on, above-mentioned light shielding part contains carbon particle, and the content of this carbon particle is more than the 45wt%, below the 65wt%.

By this structure, can on light shield layer, form transmissive portions two-dimensionally, can suppress reduction, the increase shading area of transmissivity, seek the raising of contrast.

In addition, the content of the carbon particle by will constituting light shielding part is set at more than the 45wt%, below the 65wt%, can be corresponding and form transmissive portions accurately with the bonding/non-bonding patterns of photonasty bonding coat, can realize the granular of transmissive portions.When the content of carbon particle is lower than 45wt%, black concentration deficiency, light-proofness deterioration.On the other hand, when the content of carbon particle surpassed 65wt%, the carbon particle surplus may crack or the coming off of carbon particle.

The area of light shield layer is the summation of light shielding part area and transmissive portions area.Preferably be made as more than 75% of the total area of light shield layer, thereby the image that can realize high-contrast shows by area with light shielding part.

The area occupation ratio of light shielding part (light shielding part is with respect to the area ratio of whole light shield layer) depends on the machining precision of transmissive portions largely.Therefore, when photonasty bonding coat bonding patterns transfer printing black layer is formed light shielding part,, preferably on the surface of the light shield layer side of this non-bonding patterns, form recess in order on non-bonding patterns, to form transmissive portions more accurately.By the formation of recess, can significantly reduce the contact range of black layer on non-bonding patterns, can suppress black layer and remain on the non-bonding patterns, thereby form high-precision transmissive portions.

Preferably the formation degree of depth with the recess on the non-bonding patterns is made as more than the 0.05 μ m.When being 0.05 μ m when following, can not seek the raising that transmissive portions forms precision.The formation of recess can utilize the contraction of the exposure portion of photonasty bonding coat to realize.

In addition, preferably be made as the thickness of light shield layer more than the 0.5 μ m, below the 2.0 μ m.This is owing to when being lower than 0.5 μ m, black concentration deficiency, outer light blocking deterioration in characteristics; When surpassing 2.0 μ m, filming becomes blocked up, may crack.

The lenticular spacing of fly lens is preferably more than the 35 μ m, below the 150 μ m.This is because during less than 35 μ m, it is too small that light collecting part becomes, and is difficult to form transmissive portions; During greater than 150 μ m, may produce ripple.

The fly lens sheet can be made of the film like supporting substrate of fly lens and supporting fly lens.The thickness of supporting substrate is preferably more than the 35 μ m, below the 105 μ m.If this is that the formation precision of transmissive portions worsens because outside this scope, then the shape of optically focused thickens.

The manufacture method of the fly lens of the band light shield layer of said structure comprises following operation: form the photonasty bonding coat on another interarea of the fly lens sheet that is provided with fly lens on the interarea; By fly lens photonasty bonding coat irradiation ultraviolet radiation and relative photonasty bonding coat are formed bonding/non-bonding patterns; On an interarea of supporting substrate, be provided with contain more than the 45wt%, the black layer of the following carbon particle of 65wt%, constitute the black transfer film, peel off after this transfer film and photonasty bonding coat surface is contacted, with the corresponding position of the formed light collecting part of fly lens on form transmissive portions.

The fly lens of band light shield layer of the present invention constitutes the rear projection screen that projection type image display apparatus is used by making up with Fresnel lens.

As mentioned above, according to the present invention, the rear projection screen that the area occupation ratio that can access light shielding part is big, transmissivity is good can be realized the high-contrastization of display image.

Description of drawings

Fig. 1 is the synoptic diagram of projection type image display apparatus one structure example of expression first embodiment of the invention;

Fig. 2 A, B are the stereographic maps of outward appearance of fly lens sheet of the band light shield layer of expression first embodiment of the invention;

Fig. 3 A, B are the planimetric maps of fly lens sheet of the band light shield layer of first embodiment of the invention;

Fig. 4 A～C is the synoptic diagram of the shape example of expression transmissive portions;

Fig. 5 A～C is the synoptic diagram of the shape example of expression transmissive portions;

Fig. 6 A～C is the synoptic diagram of the shape example of expression transmissive portions;

Fig. 7 A～C is the synoptic diagram of a shape example of expression fly lens;

Fig. 8 A, B are that the opening shape of transmissive portions is the sample photo of the rectilinear light shield layer major part of linear and distortion;

Fig. 9 is the synoptic diagram of a shape example of the expression fly lens that forms transmissive portions shape shown in Figure 6;

Figure 10 A, B are the synoptic diagram of the forming lens face of expression master mold;

Figure 11 A, B are the synoptic diagram of laser processing of the forming lens face manufacturing procedure of explanation master mold;

Figure 12 A, B are the synoptic diagram of laser processing of the forming lens face manufacturing procedure of explanation master mold;

Figure 13 is the synoptic diagram of expression Laser Processing principle;

Figure 14 A, B are the figure of an example of the employed mask picture of expression Laser Processing;

Figure 15 A～C is the synoptic diagram of the variation of expression laser processing;

Figure 16 is the synoptic diagram of an example of the expression employed mask of laser processing shown in Figure 15;

Figure 17 A～C is the synoptic diagram of an example of the manufacturing process of expression fly lens sheet;

Figure 18 A～E is the synoptic diagram of an example of the manufacturing process of expression light shield layer;

Figure 19 is the synoptic diagram of the manufacturing process of the fly lens sheet that illustrates in the second embodiment of the invention of expression;

Figure 20 is the synoptic diagram of a structure example of the projection type image display apparatus that illustrates in the 3rd, the 4th embodiment of the present invention of expression;

Figure 21 is the performance plot of horizontal direction diffusion property (Luminance Distribution) of the rear projection screen of expression embodiment 1;

Figure 22 is the performance plot of vertical spread characteristic (Luminance Distribution) of the rear projection screen of expression embodiment 1;

Figure 23 is the skeleton diagram of expression light shield layer observations, and wherein, A represents 92% of light shielding part area occupation ratio, and B represents 88% of light shielding part area occupation ratio, and C represents 80% of light shielding part area occupation ratio;

Figure 24 is the sample photo of light shield layer that the expression transmissive portions is shaped as the X-shaped of distortion.

Symbol description

1 projector

2 rear projection screens

3 plastic plates

The fly lens sheet of 10 band light shield layers

11 films (supporting substrate)

12 fly lenses

13 fly lenses

14 photonasty bonding coats

15 light shield layers

The 15a transmissive portions

The 15b light shielding part

16 adhesive phases

20 Fresnel lens

21 substrates

22 adhesive linkages

23 films

44 recesses

Embodiment

Below, with reference to accompanying drawing embodiments of the present invention are described.In addition, in institute's drawings attached of following embodiment, identical or corresponding part is used identical Reference numeral.

First embodiment

[one-piece construction of the image display device of rear projection]

Fig. 1 is the synoptic diagram of a structure example of the projection type image display apparatus of first embodiment of the present invention.The image display device of this rear projection possesses projector 1 and rear projection screen 2, shows through rear projection screen 2 by making from the image of projector 1 transmission.

Projector 1 with the image enlarging projection to rear projection screen 2.As this projector, can use the projector as light valve such as for example liquid crystal display cells or digital optical processing (DLP (registered trademark)) element.In addition, as the projector 1 that possesses liquid crystal display cells, can have the projector that uses transmission-type liquid crystal display element or reflection type liquid crystal display element.The image that rear projection screen 2 shows by projector 1 projection.

[one-piece construction of rear projection screen]

As shown in Figure 1, the rear projection screen 2 of this first embodiment comprises: Fresnel lens 20, and it has that the projected light of using from projector 1 becomes almost parallel light and the effect penetrated; The fly lens sheet 10 of band light shield layer, it accepts the directional light that penetrates from this Fresnel lens 20, will penetrate to horizontal direction and vertical spread and as display light.This rear projection screen 2 is set, makes Fresnel lens 20 be projector 1 one sides, the fly lens sheet 10 of band light shield layer is observer's 10 1 sides.Size to rear projection screen 2 has no particular limits, and has the oblong-shaped of the size of for example wide 786mm * long 1362mm (60 inches of diagonal line) etc.

On the face that is positioned at observer's one side of Fresnel lens 20, be provided with Fresnel lens 24.On the other hand, the face that is positioned at projector one side of Fresnel lens 20 forms plane.In addition, on the face that is positioned at projector's one side of band light shield layer fly lens sheet 10, be provided with fly lens 12.On the other hand, on the face that is positioned at observer's one side of band light shield layer fly lens sheet 10, light shield layer 15 is set.In addition, also can as required plastic plates 3 such as diffuser plate be set on this light shield layer 15 via adhesive phase 16.The lens 10 of these Fresnel lens 20 and band light shield layer makes mutual involutory setting of lens section separately.

Below, carry out more specific description at the Fresnel lens 20 and the structure of the fly lens sheet 10 of band light shield layer.

[structure of Fresnel lens]

Fresnel lens 20 comprises that a substrate 21 and an interarea are provided with the film 23 of Fresnel lens 24, and this substrate 21 and film 23 are bonding via adhesive linkage 22.As substrate 21, can use by the formed substrate of material with transparency, for example glass substrate.

As film 23, can use the film that constitutes by plastic or other material with transparency, for example can use PET (polyethylene terephthalate) film.Fresnel lens 24 has the structure that for example is configuration prism in concentric circles ground from the center of Fresnel lens 20.As the manufacture method of this Fresnel lens 24, can use known manufacture method, for example the method for making by ultraviolet curable resin.

[structure of the fly lens sheet of band light shield layer]

The fly lens sheet 10 of band light shield layer comprises: fly lens sheet 13, be arranged on the plastic plate 3 on this light shield layer 15 at the photonasty bonding coat 14 that is provided with on the face that is positioned at observer's side of this fly lens sheet 13, at the light shield layer 15 that is provided with on this photonasty bonding coat 14, via adhesive phase 16.Fly lens sheet 13 comprises the film 11 as supporting substrate, the fly lens 12 that is provided with on the face of this projector's one side.The size of fly lens sheet 10 of band light shield layer can form according to the size of needed rear projection screen, has the rectangle of the size of for example wide 786mm * long 1362mm (60 inches of diagonal line) etc.

Fig. 2 A is the stereographic map of outward appearance of projector one side of the fly lens 10 of expression band light shield layer.Fig. 2 B is the stereographic map of outward appearance of observer's one side of the fly lens 10 of expression band light shield layer.Shown in Fig. 2 A and Fig. 2 B, with the fly lens 10 of band light shield layer laterally be made as the x axle, with the fly lens 10 of band light shield layer vertically be made as the y axle, the thickness direction of fly lens 10 that will the band light shield layer is made as the z axle.In addition, in Fig. 2 B, the structure of light shield layer 15 has for convenience of description been omitted the diagram of plastic plate 3.

Fly lens sheet 13 is used for the directional light that penetrates from Fresnel lens 20 is carried out optically focused.As described later, photonasty bonding coat 14 uses when forming light shield layer 15.Light shield layer 15 is used for improving the contrast of the image that shows by absorbing outer light on rear projection screen 2.Plastic plate 3 is used to improve the rigidity and the independence of fly lens sheet 13, and is used to spread the light through fly lens sheet 13.In addition, as plastic plate 13, also can use the transparent plastic plate that does not have light diffusion function.At this moment, for diffusion function is provided, can also be at the surface of plastic plate applying diffusion sheet.

Shown in Fig. 2 A, densely on the face of projector's one side of fly lens sheet 10 be provided with a plurality of fly lenses 12.In addition, "+" mark that has on each fly lens 12 is represented the position of lens apex.

Shown in Fig. 2 B, on light shield layer 15, with the face of projector's one side on transmissive portions 15a is set on the fly lens 12 corresponding positions that are provided with.This transmissive portions 15a is the peristome that is arranged on the light shield layer 15, will penetrate to observer's one side by the light that fly lens 12 is assembled via this transmissive portions 15a.Scope outside the transmissive portions 15a of this light shield layer 15 has the function as the light shielding part 15b of light outside absorbing.

Fig. 3 A is the planimetric map of an example of expression fly lens 12.Observe from the direction perpendicular to fly lens sheet 13, fly lens 12 has quadrangle forms such as square or rectangular.A plurality of fly lenses 12 constitute the dense array of periodically arranging along x direction of principal axis and y direction of principal axis.The axial lenticular spacing X of x is set at more than the 35 μ m, 150 μ m are following for well, for example is made as 100 μ m.The axial lenticular spacing Y of y is set at more than the 35 μ m, 150 μ m are following for well, for example is made as 60 μ m.If less than 35 μ m, then light collecting part diminishes, so be difficult to form transmissive portions 15a.If surpass 150 μ m, then may produce ripple.

Fig. 3 B is the planimetric map of an example of expression light shield layer 15.Fig. 4 and Fig. 5 are the synoptic diagram of the shape example of expression transmissive portions 15a.The a plurality of transmissive portions 15a that are arranged on the transmission layer 15 periodically are provided with along x direction of principal axis and y direction of principal axis.The shape of transmissive portions 15a is decided according to the lens design of fly lens 12, for example is made as roughly quadrilateral.As quadrilateral roughly, except quadrilateral, can also list the shape (consulting Fig. 5 B, Fig. 5 C) that 2 limits of shape (consulting Fig. 4 A), tetragonal x direction of principal axis (laterally) or y direction of principal axis (vertically) that tetragonal 4 limits form to center curvature are bent to form laterally to 2 limits of the shape (consulting Fig. 4 B, Fig. 4 C) of center curvature formation, shape (consulting Fig. 5 A), tetragonal x direction of principal axis (laterally) or y direction of principal axis (vertically) that tetragonal 4 limits are bent to form laterally.In addition, the opening shape of the light shielding part 15a shown in these figure is only illustrated, is not limited to the formed shape of straight line shown in the figure or curve, also comprises serrate or cancavo-convex straight line or the formed shape of curve.

In addition, by the lens design of fly lens 12, the shape of transmissive portions 15a can be made as the roughly X type shape shown in the ellipse shown in Fig. 6 A, the B or Fig. 6 C.Particularly, be X type shape roughly by making transmissive portions 15a, affirmation can improve the viewing angle characteristic of screen.In addition, the transmissive portions 15a of X type shape is as with reference to 4 limits of the described tetragonal transmissive portions 15a of Fig. 4 A curved shape development-oriented to the inside, in present specification, Fig. 4 A and the such transmissive portions shape of Fig. 6 C is called " the X-shaped shape of distortion ".

Fig. 7 A is the stereographic map of a shape example of expression fly lens 12.Fig. 7 B is the sectional view of an example of the xz section of expression fly lens 12.Fig. 7 C is the sectional view of an example of the yz section of expression fly lens 12.This fly lens 12 has for example spherical shape or aspherical shape.Have at fly lens under the situation of aspherical shape, this aspheric surface can be by for example following formula (1) expression.

$Z\left(x\right)=\frac{C_x{x}^2}{1+\sqrt{1-(k_x+1){{C_x}^{2}x}^2}}+\frac{C_y{y}^2}{1+\sqrt{1-(k_y+1){C_y}^2{y}^2}}---\left(1\right)$

In formula (1), Cx, Cy, kx, ky implication are as follows.

Cx:x direction of principal axis curvature of centre

Cy:y direction of principal axis curvature of centre

The axial asphericity coefficient of kx:x

The axial asphericity coefficient of ky:y

Several examples of the combination of the lenticular spacing (x-spacing) of Cx, the Cy in the table 1 expression following formula (1), kx, ky, x direction of principal axis (laterally), the lenticular spacing (y-spacing) of y direction of principal axis (vertically).In addition, these numerical value only are an example, and transmissivity and light shielding part area occupation ratio etc. can suitably be set according to desired screen characteristic.

[table 1]

	Cx	Cy	The x-spacing	The y-spacing	kx	ky
								1	0.0225	0.0245	98	61	-0.45	-0.71
2	0.0150	0.0164	147	92	-0.45	-0.71
							3	0.0280	0.0305	79	49	-0.45	-0.71

On the other hand, in the situation that improves screen intensity, can correspondingly, fly lens make that going up downwards angle of visibility becomes narrower by being set.At this moment, the shape of transmissive portions 15a is preferably formed the rectilinear form into the distortion shown in the rectilinear form shown in Fig. 8 A or Fig. 8 B.In addition, " rectilinear form of distortion " is meant the edge and the non-rectilinear of transmissive portions, but zigzag and concavo-convex rectilinear form.

Here, in the cylindrical lens sheet that in the past is used in combination as rear projection screen and Fresnel lens, the shape of transmission-type also is a rectilinear form, but this moment, only can control the visual angle of left and right directions.With respect to this, in the present embodiment, in the fly lens sheet, be rectilinear form by making transmissive portions, not only can control the visual angle of left and right directions, can also control the visual angle of above-below direction to a certain extent.Can obtain the screen of high brightness thus, compare superior with the existing rear projection screen that uses the cylindrical lens sheet.

Fig. 9 represents to access a shape example of the fly lens of the transmissive portions of shape shown in Fig. 8 A, the B.At this moment, the little a lot of aspherical shape of lens curvature of the ratio of curvature x directional profile of the lens of formation y directional profile.When fly lens had such aspherical shape, this aspheric surface can be by for example following formula (2) expression.In addition, several examples of the combination of the axial lenticular spacing of Cx, Cy, ky, ky, x (x-spacing) of the above-mentioned formula of expression (2), the axial lenticular spacing of y (y-spacing) in the table 2.In addition, these numerical value only are an example, and transmissivity and light shielding part area occupation ratio etc. can suitably be set according to desired screen characteristic.

$Z\left(x\right)=\frac{C_x{x}^2+C_y{y}^2}{1+\sqrt{1-(k_x+1){C_x}^2{x}^2-(k_y+1){C_y}^2{y}^2}}---\left(2\right)$

[table 2]

	Cx	Cy	The x-spacing	The y-spacing	kx	ky
								1	0.0218	0.0202	90	61	-3.4	0.7
2	0.0227	0.0194	98	52	-2.5	0.8

[manufacture method of the fly lens sheet of band light shield layer]

In rear projection screen 2, comprise in the manufacture method of the fly lens sheet 10 of the band light shield layer of observer's one side configuration: (1) makes the master mold manufacturing process of master mold by Laser Processing; (2) by in grand master pattern, master mold being carried out processing such as electroforming, the copy mold manufacturing process that makes copy mold; (3) make the eyeglass manufacturing process of fly lens sheet by copy mold; (4) light shield layer of formation light shield layer forms operation on the fly lens sheet.

Manufacture method to the fly lens sheet of the band light shield layer of this first embodiment describes in the following order.(1) the formation operation of the manufacturing process of the manufacturing process of the manufacturing process of master mold, (2) copy mold, (3) eyeglass, (4) light shield layer.

(1) manufacturing process of master mold

Figure 10 A is the synoptic diagram of the forming lens face of expression master mold.Figure 10 B is the synoptic diagram that amplifies a formation unit of the forming lens face of representing master mold.Shown in Figure 10 A and Figure 10 B, on the forming face of master mold, on vertical and horizontal, periodically dispose a plurality of recesses corresponding with the shape of above-mentioned fly lens.

The master mold that is used to form this fly lens sheet can for example use the mask imaging method based on the KrF excimer laser, by forming processing as the substrate of machined object.As the material of this substrate, can use plastic material.In addition, machined object is not limited to the substrate that is made of plastic material etc., can also use thin slice or film.In addition, the material of machined object is not limited to plastics, can also use metal or glass etc.

In addition, the material as the plastic base of machined object can use known plastics.At this moment, change,, preferably use polycarbonate so suitably be chosen as according to processing conditions according to the thermotolerance of plastics, the glass transition point surface configuration after to processability or processing.In addition, can utilize method, the cutting method of extrusion or use form die to make master mold.At this moment,, not only plastics can be used, metal can also be used as the material of substrate processing.

As the method that the mask that is formed on the machined object is looked like to move, for example comprise relative to laser and move the method for the objective table that is loaded with machined object, move the method for laser relative to machined object.Figure 11 A represents the irradiation position of fixed laser L, longitudinally reaches the objective table 30 that laterally moves supporting machined object 33, thereby makes the moving example of mask image drift that forms on the machined object 33.Figure 11 B represents fixedly objective table 30, the machined object 33 that is supported with respect to this objective table 30 laser L that moves along the vertical and lateral, thus make the moving example of mask image drift that forms on the machined object 33.

In addition, except the plane platform shown in Figure 11 A, B, also can use the universal stage that is schematically shown as Figure 12 A, B to direction rotation.Universal stage mechanism shown in the figure is a following example: on the outer surface of the cylinder 37 of turning axle 36 rotation or interior perimeter surface machined object 33 is installed in the driving force of accepting driven roller 39, by with respect to machined object 33 along cylinder 37 move axially laser head 38, thereby make the mask image drift that forms on the machined object 33 moving.

Figure 13 is the synoptic diagram of expression Laser Processing principle.Figure 14 A, B are the synoptic diagram of an example of employed mask in the expression Laser Processing.In addition, in Figure 13, the arrow mark 35 expressions direction vertical with respect to paper.In the master mold manufacturing process of first embodiment of the present invention, can form master mold by Laser Processing.As the laser machine that is used to implement this Laser Processing, the precise laser processing machine MAS-300 that can use for example Belgian OPTEC company to make.

Shown in Figure 14 A, B, in mask 31, be provided with a plurality of peristomes or light shielding part 31a.These a plurality of peristomes or light shielding part 31a can multirow or the settings of multiple row ground.Peristome or light shielding part 31a via this mask 31 shine laser L on the machined object 33, form the mask picture on machined object 33, utilize the energy of laser L that machined object is processed thus.As the material of this mask 31, can select to tolerate the material of the irradiation of laser L, for example select metal mask or evaporation metal forms on quartz mask.

Select the shape of peristome or light shielding part 31a, with via this peristome or light shielding part 31a and lens 32 irradiating laser L, on machined object 33, form the mask picture, simultaneously by the direction of this mask picture on machined object 33 moved, thereby form the groove (recessed) or the projection (protruding) of sphere or aspherical shape.In addition,, plastic material can be used, for example polycarbonate can be used as machined object 33.

Shape as peristome that can form sphere or aspheric groove or light shielding part 31a, except shown in Figure 14 A, B along the shape of mask moving direction symmetry (symmetry) up and down, can also list for example shape of end such as semicircle or claw type arc-shaped bend.In Figure 14 A, B, white portion is represented the mask open zone, and black region is represented the mask lightproof area.And the moving direction of qualification mask picture is so that these crooked limits are the moving direction of mask picture or direction in contrast.Thus, make the mask picture when a direction moves, when using mask shown in Figure 14, a large amount of laser L of position irradiation that can pass through according to the core of mask picture.Can form the groove of sphere or aspherical shape.

In addition, when forming the projection of sphere or aspheric surface shape on machined object 33, shown in Figure 14 B, peristome and light shielding part can use the counter-rotating mask.

Below, consult Figure 13 the manufacturing process of master mold is described.

At first, mask 31 is set above machined object 33,, on machined object 33, forms the mask picture by 31 pairs of machined objects of this mask, 33 irradiating laser L, simultaneously according to shown in the arrow mark 34, mobile in the horizontal machined object 33.Like this, horizontal mobile mask picture on machined object 33, and processing continuously on machined object 33.By this operation, on machined object 33, form the groove of striated.

Then, mask 31 direction in face revolved turn 90 degrees setting,, on machined object 33, form the mask picture,, machined object 33 is moved in the vertical simultaneously according to shown in the arrow mark 35 by 31 couples of this machined object 33 irradiating laser L of this mask.Like this, on machined object 33, vertically move mask, and processing continuously on machined object 33.By above-mentioned operation, can make the target master mold.

In addition, the manufacture method of master mold is not limited to above-mentioned example.For example, Figure 15 is the schematic diagram that other master mold method for making is described, Figure 16 is the synoptic diagram of an example of the employed mask arrangement of this method of expression.In addition, as the employed laser machine of this master mold fabrication method, the laser retrofit device " MicrAblater M2000 " that can use Britain X Tech company to make.

As shown in figure 16, on mask 31A, form a plurality of peristomes.Select the shape of peristome, by peristome irradiating laser L, on machined object 33, form the mask picture, simultaneously, move the lens that form sphere or aspheric surface shape to a direction of machined object 33 by making the mask picture with as illustrated in fig. 15.Specifically, as the shape of mask 31A peristome shown in Figure 16, can be that the short transverse with target lens shape is divided into a plurality of sections, and its moving direction along the mask picture is arranged.

With reference to Figure 15 the manufacture method of the master mold of use mask 31A is described.At first, the top with mask 31A is arranged on machined object 33 to machined object 33 irradiating laser L, forms mask picture (Figure 15 A) by this mask 31A on machined object 33.Like this, can process machined object 33 with each peristome shape counterpart.Then, shown in the arrow mark, make the mobile in the horizontal mask 31 of machined object 33 1 pattern amount, be the distance at the center of the center of a peristome of mask 31A and adjacent peristome shape, and irradiating laser L (Figure 15 B).Like this, implement the processing of two steps in the short transverse of machined object 33.Similarly, as if making mask 31A move the distance of 1 pattern amount in the horizontal and processing, then can shown in Figure 15 C, on short transverse, carry out the processing of three steps.Like this, by laterally on average moving irradiating laser behind 1 pattern, the pattern numbers of machined object 33 on processed mask 31A moving direction on the short transverse successively.For example be made as more than 100 by the pattern numbers that will on mask 31A, form, can be at the lens shape that constitutes by smooth curve that forms on the machined object 33 on the short transverse.

(2) manufacturing process of copy mold

At first, on the relief pattern of the master mold of as above making, form conducting film by for example electroless plating method of applying.Wherein, conducting film is the metal deposit that for example is made of metals such as nickel.Then, the master mold that will be formed with conducting film is installed on the electroforming apparatus, by for example electrochemical plating, forms the coats of metal such as nickel coating on conducting film.Then, stripping metal coating from the master mold.Thus, obtain having the copy mold of the relief pattern opposite with master mold.

Then, on the face of the concavo-convex side of being formed with of the copy mold that as above obtains, form for example coat of metal such as nickel coating by for example electrochemical plating.Then, stripping metal coating from the copy mold.By above-mentioned steps, can make the copy mold that has with the identical concaveconvex shape of master mold.

(3) manufacturing process of fly lens sheet

Figure 17 is the synoptic diagram of an example of expression fly lens sheet manufacturing process.

At first, shown in Figure 17 A, for example on the relief pattern of the copy mold of as above making 41, flow into resin materials such as ultraviolet curable resin.Then, shown in Figure 17 B, the overlapping film 11 that becomes supporting substrate on copy mold 41.And, by for example rubber rollers etc. film 11 is applied acting force, make that the thickness of resin material is even.

Then, from for example film 11 1 side irradiation ultraviolet radiations, resin material such as ultraviolet curable resin is solidified.Then, shown in Figure 17 C, peel off from the resin materials such as ultraviolet curable resin that copy mold 41 will solidify.On an interarea of film 11, form fly lens 12 by said method, make needed fly lens sheet 13.

The resin material that forms fly lens 12 is not particularly limited to ultraviolet curable resin, also can use the resin material with light transmission, but owing to painted, the form and aspect that smog causes transmitted light, the variation of transmission light quantity, thereby undesirable.From the simplicity of making, preferably can be by ultraviolet ray, electron ray or the hot resin that solidifies, being preferably can be by the photoresist of ultraviolet curing.For example, can use acrylic resins such as urethane acrylate, epoxy acrylate, polyester acrylate, polyalcohol acrylate, polyether acrylate, melamine acrylate.

In addition, in photoresist, can suitably use light stabilizer, ultraviolet light absorber, antistatic agent, fire retardant, antioxidant etc. as required.Do not limit as the thickness of photoresist is special,, then in following operation, when the photonasty bonding coat is solidified, the absorption of the UV light of irradiation is increased, thereby preferred thickness is below the 200 μ m if very thick.

As film 11, can use the plastic sheeting that for example has the transparency.As such film, can use known macromolecule membrane, specifically, can from the resin film that for example polyester, polyethylene terephthalate (PET), polyimide (PI), polyamide, aromatic poly amide, tygon, polyacrylate, polyethersulfone, triacetyl cellulose, polysulfones, Port リ プ, diacetyl cellulose, polypropylene, Polyvinylchloride, acryl resin, polycarbonate, epoxy resin, urea resin, urethane resin, melamine resin etc. are known, suitably select to use.

When film 11 when for example the PET film has the plastic sheeting of crystalline orientation like this, the direction that the short side direction (limit that spacing is narrow) that preferably makes single lens and the thermal shrinkage of film 11 are big is consistent.The big direction of so-called heat-shrinkable, when having the film of crystalline orientation, the flow direction when typically referring to the system film (system film direction).The direction that thermal shrinkage by making film is big is consistent with the short side direction of single lens, can reduce the processing strain that is applied when the fly lens sheet is made.

The thickness of film 11 for example be preferably 35 μ m above, below the 105 μ m.If depart from this scope, then more than the lenticular spacing with fly lens 12 is defined as 35 μ m, when 150 μ m are following, the focal point skew, the shape of optically focused thickens.

In addition, the manufacture method of fly lens sheet 13 is not limited to this example, can carry out moulding to transparent thermoplastic resins such as polyacrylate, Polyvinylchloride, polycarbonate, cyclic olefin resinoids by any method.By this quadrat method moulding the time, also can not use the film 11 that becomes supporting substrate.

(4) manufacturing process of light shield layer

Figure 18 is the synoptic diagram of an example of expression light shield layer manufacturing process.

At first, shown in Figure 18 A, with the tabular surface of the lens face opposition side of the fly lens sheet of as above making 13 on for example form photonasty bonding coat 14 such as UV-radiation-sensitive resin bonded laminate.As the formation method of this photonasty bonding coat 14, for example can list on the surface of film 11 directly the fusible method of coating photonasty, strippingly forming photonasty bonding coat 14 on the supporting mass and this photonasty bonding coat 14 pasted the method for peeling off supporting mass on the surface of film 11 etc.

As the material that constitutes photonasty bonding coat 14, can use principal ingredient is the Thermoadhesive bonding agent that is made of at least a organic polymer, the optical polymerism compound with ethylene type unsaturated group, a kind of material of Photoepolymerizationinitiater initiater.

The Thermoadhesive bonding agent that above-mentioned organic polymer constitutes preferably mixes with above-mentioned each composition.Example as common organic polymer, for example can list Polyvinylchloride, polymethylacrylic acid, poly-(methyl) acrylate, polyvingl ether, polyvinylketals, urethane resin, epoxy resin, polyamide, polyester, vinylidene chloride-acrylonitrile copolymer, vinylidene chloride-methacrylate copolymer, vinylidene chloride-vinyl acetate co-polymer, cellulose derivative, polyolefin, diallyl phthalate ester resin, various synthetic rubber, for example hycar etc.

As photopolymerization compounds, but can use without restriction have can free radical polymerization ethylene type unsaturated group addition polymerization or crosslinked known monomers, oligomer, polymkeric substance.For example have the monomer, oligomer of vinyl or acryloyl group endways or side chain have the polymkeric substance of ethylene type unsaturated group.As the example, can list acrylic acid and salt thereof, esters of acrylic acid, acrylic amide, methacrylic acid and salt thereof, methyl acrylic ester, methacryl amine, maleic anhydride, maleate class, itaconate class, phenylethylene, vinyl ethers, vinyl ester, N-vinyl heterocycle class, propenyl ethers, propenyl ester class and their derivant etc.As concrete compound, can list (methyl) acrylic acid, (methyl) methyl acrylate, (methyl) butyl acrylate, cyclohexane (methyl) acrylate, dimethylamino (methyl) acrylate, carbitol (methyl) acrylate, (methyl) 2-EHA, (methyl) lauryl acrylate, (methyl) acrylic acid 2-hydroxy methacrylate, (methyl) acrylic acid 2-hydroxy propyl ester, (methyl) acrylamide, N-methylol (methyl) acrylamide, styrene, vinyl cyanide, the N-vinyl pyrrolidone, (methyl) acrylic acid glycol ester, triethylene glycol two (methyl) acrylate, propylene glycol two (methyl) acrylate, tripropylene glycol two (methyl) acrylate, pentaerythrite two (methyl) acrylate, butylene glycol two (methyl) acrylate, hexanediol two (methyl) acrylate, nonanediol two (methyl) acrylate, neopentyl glycol two (methyl) acrylate, trimethylolpropane tris (methyl) acrylate, two (trimethylolpropane) four (methyl) acrylate, pentaerythrite three (methyl) acrylate, pentaerythrite four (methyl) acrylate, dipentaerythritol four (methyl) acrylate, dipentaerythritol five (methyl) acrylate, triethylene glycol divinyl ether hydroxybutyl vinyl ether, polyurethane (methyl) acrylate, polyester (methyl) acrylate, epoxy radicals (methyl) acrylate etc., these compounds can use a kind or be mixed with two or more.

The blending ratio of above-mentioned material composition is approximately the Thermoadhesive bonding agent of the organic polymer formation of 20～80wt%, the optical polymerism compound with the polymerisable vinyl unsaturated link of free radical of 20～80wt%.

Then, shown in Figure 18 B, from photonasty bonding coat 14 irradiation ultraviolet radiations (UV directional light) of fly lens 12 1 sides to its uncured state.Like this, ultraviolet ray is gathered on the light collecting part 14a, make the photonasty bonding coat of the light collecting part 14a in the photonasty bonding coat 14 solidify by fly lens 12.That is the photonasty bonding coat 14 forfeiture cohesives of light collecting part 14a.To this, the photonasty bonding coat 14 of not assembling ultraviolet non-light collecting part 14b keeps cohesive.

Then, shown in Figure 18 C, on photonasty bonding coat 14, paste the black layer 17 of black transfer film 19, peel off supporting mass 18 then.Like this, shown in Figure 18 D, the part of corresponding light collecting part 14a in the black layer 17 (non-bonding patterns zone) is peeled off with supporting mass 18, thereby form transmissive portions 15a with Fig. 4～Fig. 6 or quadrilateral, X-shaped, linear or their deformed shape shown in Figure 8, simultaneously, the light shielding part 15b of the residual black layer 17 of the part (bonding patterns zone) in field formation beyond the corresponding light collecting part 14a.By above-mentioned steps, shown in Figure 18 E, obtain on the face of observer's one side, being provided with the fly lens sheet 10 of the band light shield layer of the light shield layer 15 that constitutes by transmissive portions 15a and light shielding part 15b.Then, as required, on light shield layer 15, form plastic plate 3.

Black transfer film 19 can make on supporting mass 18 by the applying coating that will mix resin and carbon black.

As above-mentioned carbon black, can use the carbon black of market sale.For example, comprise that Mitsubishi changes into BP-800, BP-L, REGAL-660, the REGAL-330 of #980B, the #850B of society's manufacturing, MCF88B, #44B, the manufacturing of キ ヤ ボ Star ト company; RAVEN-1255, RAVEN-1250, RAVEN-1020, RAVEN-780, RAVEN-760 that コ ロ Application PVC ア Application カ-ボ Application company makes; Printex-55, the Printex-75 that デ グ サ company makes, Printex-25, Printex-45, SB-550 etc.These compounds can use or mix use separately.

As the adhesive resin that mixes with carbon black, can use vestolit, urethane resin, phenoxy resin, vibrin of modification and non-modification etc., in addition, can also use cellulose esters such as cellulose acetate-butyrate ester.In addition, can also use thermoplastic resin with specific use-pattern, thermoset resin, reactive resin, electron ray curing type resin etc.

In the present embodiment, the content of carbon black is made as more than the 45wt%, below the 65wt% in the coating.

When the content of carbon black surpassed 65wt%, carbon black was excessive with respect to resin, and carbon black comes off easily.Therefore, be difficult to corresponding light collecting part 14a and form transmissive portions 15a accurately.In addition, carbon black take off to light collecting part come off and coming off in transfer printing process can be polluted lens and operating environment, thereby be unfavorable.

In addition, when content of carbon black was lower than 45wt%, because resin becomes excessive, thereby coating strength strengthened, and filmed can not copy the border of light collecting part and non-light collecting part and peel off, and should be attached to black layer on the non-light collecting part deficiency that becomes.Perhaps, cause black layer to remain on the light collecting part.The black layer deficiency of non-light collecting part, black layer be residual to cause to light collecting part that the contrast of projected image reduces, projected image is not good enough, is unfavorable therefore.

By the content of such qualification carbon black, can form the transmissive portions 15a of quadrilateral, X-shaped, linear or their deformed shape accurately with respect to light collecting part 14a.In addition, can be based on the lens shape of fly lens 12, the repeatability highland forms the target shape of transmissive portions 15a, thereby can realize the miniaturization of transmissive portions 15a.Carbon content is preferably more than the 50wt%, below the 60wt%.

In black layer 17, except carbon black and adhesive resin, the spreading agent that can also comprise adjuvants such as organic pigment, inorganic pigment as required and be used to improve dispersion.

The coating that becomes black layer 17 can make by the following method: use stirring machine to pass through conventional method as required with above-mentioned each composition and solvent, be coated on the supporting mass 18, dry or curing.

Supporting mass 18 as above-mentioned coating can use known plastic sheeting.Can form undercoat on the plastic sheeting surface as required, adjust the peel strength of plastic sheeting and black layer 17.

The thickness of black layer 17 is preferably more than the 0.5 μ m, below the 2.0 μ m.When thickness during less than 0.5 μ m, black concentration reduces, and can not fully cover outer light.In addition, density unevenness is even to become obviously, therefore undesirable.When thickness surpasses 2.0 μ m, black transfer printing layer 17 is being pasted, when being pressurized on the photonasty bonding coat, cracked on filming, thereby undesirable.The thickness of black layer 17 most preferably is more than the 0.7 μ m, below the 1.5 μ m.

Second embodiment

Then, describe at second embodiment of the present invention.

In the above-described first embodiment, the situation of making master mold so that the tabular machined object is carried out Laser Processing is that example is illustrated, and in this second embodiment, has machined object cylindraceous and the situation of making master mold describes at Laser Processing shown in Figure 12 A, B.

Except the manufacture method of fly lens sheet of band light shield layer, identical with above-mentioned first embodiment, therefore, below the manufacture method of the fly lens sheet of band light shield layer is described.

Manufacture method to the fly lens sheet of the band light shield layer of second embodiment of the invention describes in the following order.(1) the formation operation of the manufacturing process of the manufacturing process of the manufacturing process of master mold, (2) copy mold, (3) eyeglass, (4) light shield layer.

(1) manufacturing process of master mold

At first, prepare to have columnar machined object.As the machined object material, can use known plastics.At this moment,, therefore preferably suitably select, preferably use polycarbonate according to processing conditions according to the surface configuration after thermotolerance, vitrification point change processability and the processing of plastics.

Then, has mobile LASER Illuminator System on the inside surface of this columnar machined object.In this LASER Illuminator System, the mask that is used for machined object is processed into desired shape is installed.As this mask, for example can use and the identical mask of above-mentioned first embodiment.

Then,, on the inner peripheral surface of machined object, form the mask picture, make LASER Illuminator System move to another openend simultaneously from an openend of machined object by the inside surface irradiating laser of this mask to machined object.Like this, the mask picture of laser moves to another openend from an openend, forms from the strip-shaped grooves of an openend to the other end on the inner peripheral surface of machined object.

And, be that turning axle suitably rotates machined object with the central shaft of machined object, repeat above-mentioned operation simultaneously.Like this, on the whole inner peripheral surface of machined object, form from the strip-shaped grooves of an openend to another openend.

Then, make LASER Illuminator System move to another openend.And, by the inner peripheral surface irradiating laser of mask, thereby on the inner peripheral surface of machined object, form the mask picture to machined object, simultaneously, be turning axle with the central shaft of machined object, with certain speed rotation machined object.Thus, the mask of laser is looked like to move on the circumference of inner peripheral surface, and on the circumference of inner peripheral surface, process.LASER Illuminator System is suitably moved to another openend from an openend, repeat same operation simultaneously.By above-mentioned operation, can obtain needed master mold.

In addition, have in the situation of semi-circular shape and claw-like, for example set the installation site of the relative LASER Illuminator System of mask, so that the mask picture moves on the direction of its curved edges one side or direction in contrast at the opening of mask.

(2) manufacturing process of copy mold

At first, by electroless plating for example apply method as the inside surface of the master mold of above-mentioned manufacturing on form the conductionization film.Wherein, the metal film of conducting film for for example constituting by metals such as nickel.Then, the master mold that has formed conducting film is installed on the electroforming apparatus,, on conducting film, forms the coats of metal such as nickel coating by for example electrochemical plating.Then, for example by the cut master mold, stripping metal coating from the master mold.Thus, obtain having the copy mold of the relief pattern opposite with master mold.

(3) manufacturing process of eyeglass

Figure 19 is the synoptic diagram that is used to illustrate the manufacturing process of fly lens sheet.At first, with reference to Figure 19, describe at employed eyeglass manufacturing installation in the fly lens piece making method.As shown in figure 19, this eyeglass manufacturing installation comprises backer roll 52, resin distribution device 54, stripper roll 55, UV lamp (uviol lamp) 56 and copy mold 57.

Substrate sheets (base film) 51 has belt like shape.As the material of substrate sheets 51, can use the plastic sheeting that for example has the transparency.As such film, can use known macromolecule membrane, specifically, can from the resin film that for example polyester, polyethylene terephthalate (PET), polyimide (PI), polyamide, aromatic poly amide, tygon, polyacrylate, polyethersulfone, triacetyl cellulose, polysulfones, Port リ プ, diacetyl cellulose, polypropylene, Polyvinylchloride, acryl resin, polycarbonate, epoxy resin, urea resin, urethane resin, melamine resin etc. are known, suitably select to use.This substrate sheets 51 is wound in advance and forms the Roll Sushi shape on the spool, and is rotatably installed on the assigned position of sheet producing device.

Copy mold 57 is mould rollers that the operation by above-mentioned (1)～(2) obtains, and is used for a plurality of continuous formation fly lenses 12 on an interarea of substrate sheets 51.Copy mold 57 has cylindrical shape, is provided with the mould of the trickle shape that is used to form fly lens 12 on its face of cylinder.In addition, copy mold 57 is that turning axle is rotatably installed with its central shaft, and along with substrate sheets 51 is sent in the rotation of copy mold 57.

Backer roll 52 is used for substrate sheets 51 is pressurizeed and makes it fit tightly the face of cylinder at copy mold 57.Backer roll 52 has cylinder form, and its radius for example can be selected the radius less than copy mold 57.Backer roll 52 is that turning axle rotatably constitutes with its central shaft.

Stripper roll 55 is used for the substrate sheets 51 that is formed with fly lens 12 on the interarea is peeled off from mould roller 57.Stripper roll 55 has cylindrical shape, selects its radius for example less than the radius of copy mold 57.Stripper roll 55 is that turning axle rotatably constitutes with its central shaft.

Resin distribution device 54 ultraviolet curing resin 53 that is used to drip, and constitute so movably by the position of dripping that can adjust ultraviolet curable resin.UV lamp 56 be can irradiation ultraviolet radiation structure, and to substrate sheets 51 irradiation ultraviolet radiations by copy mold 57 conveyances.

Then, with reference to Figure 19 the manufacture method of fly lens sheet is described.

At first, be provided with package substrate sheets 51 on the copy mold 57 of trickle shape from the teeth outwards, clamp by backer roll 52 and stripper roll 55.Then, drip ultraviolet curable resin 53 to substrate sheets 51, substrate sheets 51 is crimped on the copy mold 57, simultaneously it is sent from resin distribution device 54.Like this, fill ultraviolet curable resin between the face of cylinder of copy mold 57 and substrate sheets 51, remove the bubble that is mixed in the ultraviolet curable resin simultaneously, the mold shape of copy mold 57 is transferred on the ultraviolet curable resin layer.In addition, the dropping position of ultraviolet curing resin 53 is not limited to above-mentioned example, can for example between copy mold 57 and substrate sheets 51, drip ultraviolet curing resin 53 on one side, thereby between copy mold 57 and substrate sheets 51, form buildup of resin, Yi Bian make eyeglass.

As ultraviolet curable resin 53, can list for example acrylic resin, vibrin, Corvic, urethane resin, silicones etc., but be not particularly limited to these resins.In addition, resin is not limited to ultraviolet curable resin, can use the various resins that are cured by the absorption energy, and for example can use can be by electron ray or the resin that is heating and curing.

And, below copy mold 57 to substrate sheets 51 irradiation ultraviolet radiations and make after ultraviolet curable resin 53 solidifies, peel off substrate sheets 51 by the stripper roll 55 of rotation from copy mold 57.Like this, formation has the optical layers of fly lens 12 on substrate sheets 51, obtains needed fly lens sheet 13.

(4) the formation operation of light shield layer

The formation operation of light shield layer is identical with above-mentioned first embodiment, its explanation of Therefore, omited.

The 3rd embodiment

Figure 20 is the synoptic diagram of a configuration example of the projection type image display apparatus of expression third embodiment of the invention.In addition, mark identical Reference numeral with the corresponding part of first embodiment in the drawings, and detailed.

In the present embodiment, the fly lens sheet 10 of band light shield layer be included in the fly lens sheet 13 that is formed with fly lens 12 on the interarea, the light shield layer 15 on another interarea of being arranged on fly lens sheet 13, the photonasty bonding coat 14 of formation between these fly lens sheets 13 and light shield layer 15.

Photonasty bonding coat 14 is the same with above-mentioned first embodiment, has bonding/non-bonding patterns.Light shield layer 15 has: light shielding part 15b, and it is formed on the bonding patterns of photonasty bonding coat 14; Transmissive portions 15a, it is formed on the non-bonding patterns, makes the transmittance by fly lens 12.And, transmissive portions 15a be separately positioned on the corresponding position of the formed light collecting part of fly lens on.As reference Figure 18 is illustrated, the transfer printing of the black layer 17 by having used black transfer film 19 and form light shield layers 15 with respect to photonasty bonding coat 14.

In the present embodiment, in the scope corresponding, form recess 44 with the non-bonding patterns of photonasty bonding coat 14.Form recess 44 by the surface at the non-bonding patterns of photonasty bonding coat 14, after 14 exposures of photonasty bonding coat, when adhering to black transfer film 19, black layer 17 is difficult to paste on the non-bonding patterns.Like this, when black transfer film 19 was peeled off, the black layer 17 that is positioned on the non-bonding patterns of photonasty bonding coat 14 was peeled off from photonasty bonding coat 14 with supporting mass 18 easily, was difficult to produce the residual of black layer in the non-bonding patterns.

Therefore, according to present embodiment, compare with above-mentioned first embodiment, can improve the form accuracy of transmissive portions 15a, can not reduce the area occupation ratio (light shielding part 15b is with respect to the area ratio of whole light shield layers 15) of transmissivity, raising light shielding part 15b, the raising of realization display image contrast.In addition, do not need ultraviolet ray irradiation light quantity strong as the cohesive forfeiture in the optically focused zone that causes fly lens 12, thereby can also realize the reduction of production cost.

This recess 44 on the surface of light shield layer 15 1 sides of the non-bonding patterns of photonasty bonding coat 14 with 0.05 μ m more than, the degree of depth more than the preferred 1 μ m forms.If the formation degree of depth of recess 44, then can not realize the minimizing of black layer to the contact area of the non-sticky pattern of photonasty bonding coat 14 less than 0.05 μ m, may be on non-bonding patterns residual black layer.

Form concavo-convex 44 method as non-bonding patterns, the thermal shrinkage of light collecting part or the method for the distortion that cure shrinkage causes during the suitable ultraviolet exposure that utilizes photonasty bonding coat 14 with respect to photonasty bonding coat 14.Thus, can when forming the formation operation of bonding/non-bonding patterns, carry out the formation operation of recess 44 with respect to photonasty bonding coat 14.

In the present embodiment, as photonasty bonding coat 14, in the disappearance of light collecting part cohesive, by thermal shrinkage or the cure shrinkage that causes light collecting part, the surface deformation that makes light shield layer 15 1 sides is the viscosity polymer resin layer of concavity when exposure in suitable use.As such photonasty bonding coat 14, in the various photopolymerization compounds of enumerating in the above-described first embodiment, be particularly suitable for using and shrink big photopolymerization solidfied material when solidifying.

In addition, the not special restriction of the shape of recess 44 gets final product so long as can reduce the shape that contacts with the physics of the black layer of black transfer film.Recess 44 is preferably formed rectangular shape, in addition, also can be pit shape and other shapes.

In addition, the formation method of recess 44 be not limited to above-mentioned when utilizing photoresist bonding coat 14 exposure thermal shrinkage or the method for cure shrinkage, also can be the method that for example machineries such as the punching press processing of the non-bonding patterns of the photonasty bonding coat 14 after expose preceding or the exposure, inject process is formed recess.

On the other hand, forming in the operation of light shield layer 15 with respect to photonasty bonding coat 14, for the transmissive portions 15a on the non-bonding patterns that forms photonasty bonding coat 14 accurately, preferred restriction constitutes the cohesiveness of the black layer 17 (Figure 18) of light shielding part 15b.In the present embodiment, the cohesiveness with black layer 17 is defined as martensite hardness 30N/mm ²More than, 200N/mm ²Below.

When the martensite hardness of black layer 17 surpasses 200N/mm ²The time, the slight crack of then filming during black layer 17 transfer printings increases the weight of, and is difficult to as form light collecting part 15a by fly lens 12 optically focused.Under the situation of fly lens, being shaped as of transmissive portions rectangular (two dimension) compared with the situation of biconvex lens, and the formation of light shield layer is complicated.When the cohesive force of filming raise, then the shape of transmissive portions and light collecting part were inconsistent, caused transmissivity reduction and black inhomogeneous.On the other hand, the martensite hardness when black layer 17 is lower than 30N/mm ²The time, the cohesive force of filming is low excessively, produces powder and come off in operation, and operability reduces or causes being attached to transmissive portions, causes that transmissivity reduces.

In addition, the martensite hardness of using among the present invention is meant the hardness of measuring under the state of test load (extruding) carrying, and the value of the load-extruding depth curve when being increased by load is tried to achieve.In martensite hardness, comprise two kinds of compositions of plasticity and elastic deformation.

Martensite hardness is at quadrangular pyramid pressure head and the definition of pyrometric cone pressure head.Specifically, be shown below, be defined as test load F divided by the value that obtains by surface area As from the contact starting point to the pressure head invasion.

Martensite hardness=F/As=F/26.34h ²

Wherein, surface area As is meant

(1) in the situation of Vickers pressure head (quadrangular pyramid pressure head)

As＝(4sin(α/2)/cos ²(α/2))×h ²

(2) in the situation of Ba Keshi (バ one コ PVC Star チ) pressure head (pyrometric cone pressure head)

$\mathrm{As}=(3\sqrt{3}\tan \mathrm{\&alpha;}/\cos \mathrm{\&alpha;})\&times;{\mathrm{<figure-callout\; id="2"\; label="h"\; filenames="A20061012638400641.png,A20061012638400831.png"\; state="\{\{state\}\}">h</figure-callout>}}^2.$

As mentioned above, be set at martensite hardness 30N/mm by coating strength with black layer 17 ²More than, 200N/mm ²Below, 50N/mm more preferably ²More than, 100N/mm ²Below, the marginal portion of transmissive portions can be formed tartly, thereby the area occupation ratio of light shielding part can be do not reduced, make the fly lens sheet of high-transmission rate.In addition, can form quadrilateral or X-shaped, linear etc. and the irrelevant required transmissive portions shape of the shape of transmissive portions accurately.

Certainly, can also constitute the light shield layer of the rear projection screen that uses biconvex lens (cylindrical lens) by black layer 17 of the present invention.At this moment, also can form the transmissive portions of rectilinear form accurately, thereby can not reduce the light shielding part area occupation ratio, improve transmissivity.

In addition, in order to suppress on the non-adhesion area that black layer 17 is adhered to photonasty bonding coat 14, the rigidity that the supporting mass 18 (Figure 18) of black transfer film 19 has to a certain degree is suitable.As the constituent material of supporting mass 18, can use known plastic sheeting, for example when using the PET plastic sheeting, its thickness is preferably more than the 12 μ m, below the 50 μ m.

When the thickness of supporting mass 18 during less than 12 μ m, because the rigidity deficiency of supporting mass 18, black layer 18 is attached on the recess 44 of transmissive portions 15a easily.At this moment, the essential formation degree of depth that increases recess 44.In addition, if greater than 50 μ m, then owing to produce stress when black transfer film 19 is pasted, there is the possibility of recess 44 breakages in the thickness of supporting mass 18.At this moment, must when the stickup of black transfer film, control only pressure.

The 4th embodiment

As shown in figure 20, in rear projection screen 2, be modified to directional light by Fresnel lens 20, be injected into then in the fly lens sheet 10 of band light shield layer from the light of projector 1.At this moment, if in the fly lens sheet 10 of band light shield layer, produce ripple or distortion, then can produce image fault or smudgy owing to the incident angle turmoil of light.Therefore, the fly lens sheet 10 of band light shield layer must have the depth of parallelism with respect to Fresnel lens 20.

The fly lens sheet 10 following formations of band light shield layer:, thereby plastic plate 3 is adhered on the light shield layer 15 to guarantee rigidity and independence, the not anamorphose that can produce by adhesive phase 16 because fly lens sheet 13 itself is very thin and lack rigidity and independence.Compare with glass plate, plastic plate has advantages such as in light weight and low price, damaged risk are little.

But plastic plate is compared with glass plate, hydroscopicity, poor heat resistance, thereby under high humidity, low temperature, hot environment, expand, shrink.In addition, constitute because the fly lens sheet is a duplexer by the different resin bed of linear expansion coefficient, thereby under above-mentioned equivalent environment, can produce change in size.Therefore, because the change in size of expansion, contraction and the fly lens sheet of these plastic plates exists display image to produce the problem of distortion.Particularly, by being provided with two-dimensionally at light shield layer in the fly lens sheet of band light shield layer that transmissive portions improves picture contrast, can produce following unfavorable condition: incident angle changes because the distortion of thin slice or plastic plate causes, image produces distortion, simultaneously owing to the transmissivity reduction causes the image deepening.

Therefore, in the present embodiment, plastic plate being sticked in the screen that constitutes on the fly lens sheet,, can improve the distortion of screen and image by the change in size that environmental impact caused such as the peculiar heat of plastics, humidity are suppressed by bonding coat.

Below, carry out specific description with reference to Fig. 1 or Figure 20, the part that does not have to specify is identical with the structure of the respective embodiments described above.

Plastic plate 3 can use the known plastic plate with transparency.As such plastic plate, can use the plate that forms by known macromolecule, specifically, can be from acryl resin, styrene resin, polycarbonate, acrylic acid-styrol copolymer, polyester, polyethylene terephthalate (PET), polyimide (PI), polyamide, aromatic poly amide, tygon, polyacrylate, polyethersulfone, triacetyl cellulose, polysulfones, Port リ プ, diacetyl cellulose, polypropylene, Polyvinylchloride, acryl resin, polycarbonate, epoxy resin, urea resin, urethane resin, select in the known resin plate such as melamine resin to use.

Preferably the change in size under high temperature, low temperature, high humidity environment is little for plastic plate 3 employed resin materials, and the water-intake rate of plastic plate monomer is preferably below 0.2%.For example, by the styrene ratio of raising copolymer of methyl methacrylatestyrene, thereby can reduce water-intake rate.

The thickness of plastic plate 3 for example be preferably 0.5mm above, below the 2.5mm.For the ripple of the lens face that suppresses fly lens sheet 13, preferred thick plastic plate 3, still, when thickness was blocked up, then because the absorption of resin causes transmissivity to reduce, cost, weight also increased.

In addition, can also give light diffusion function to plastic plate 3.At this moment, can diffusant system film obtains by adding arbitrarily in constituting the resin of plastic plate.

As diffusant, can use various known inorganic and organic fillers.Specifically, can list cross-linked acrylic acid particulate, styrene particulate, crosslinked polyethylene particulate, silicon dioxide microparticle etc., but be not limited to these.Preferably under the condition of the transmissivity that does not reduce plastic plate, have diffusion function, can use the suitable diffusant of refringence of resin and diffusant.The particle diameter of diffusant can be selected arbitrarily, for example can for more than the 0.5 μ m, below the 50 μ m, more than the preferred 1 μ m, the diffusant of the following particle diameter of 30 μ m.If particle diameter reduces, then the influence of scattering increases, thereby transmissivity reduces.Can suitably select kind, particle diameter of diffusant etc. according to the diffusion property of necessity.

In addition, when environment is preserved, may produce the warpage of plastic plate 3, can also be by making plastic plate 3 to a lateral bending song opposite with this warp direction.

Also can be formed for improving hard conating with the mar resistance of the opposite side of bonding agent binding face (surface of observer's one side) of plastic plate 3.Material as constituting hard conating can use known transparent resin.For example as gel-type resin, comprise polyfunctional acrylic ester class radioactive ray (ultraviolet ray) curable resins such as melamine class thermoset resin, phenoxy group class thermoset resin, epoxies thermoset resin, polyalcohol acrylate, polyester acrylate, urethane acrylate, epoxy acrylate such as the polymkeric substance of silane oxides such as methyl triethoxysilane, phenyl triethoxysilane or etherificate melamine methylol etc.Wherein, multi-functional acrylate's resinoid isoradial curable resin can form the layer of high-crosslinking-degree by the irradiation of radioactive ray within a short period of time, thus the burden with manufacturing process less, feature such as film density height, most preferably use.

Method as form hard conating on plastic plate 3 can apply above-mentioned resin by any means on plastic plate, make its curing by radioactive ray (ultraviolet ray) irradiation or heating then.As application pattern, for example can using, nick version coating process, Mayer rod are coated with method, direct intaglio plate is coated with various coating methods such as method, anti-roller coating process, curtain coating, spraying process, spot printing method (commer coating), die head rubbing method, knife coating, spin-coating method.

In addition, by in hard conating, comprising particulate, can give anti-dazzle, antistatic behaviour.Preferably the mean grain size by the particulate that will be comprised be made as more than the 0.5 μ m, below the 15 μ m, thereby on hard coating surface, form trickle concavo-convex.In addition, as the particulate that is comprised in the hard conating, can use various known inorganic and organic fillers.

On the other hand, as the adhesive phase 16 that is used for bond plastic plate 3 on fly lens sheet 13, so long as the adhesive phase of the transparency can use not special restriction.For example, can use acrylic adhesives, silicone bonding agent, rubber adhesive etc.

In the present embodiment, in this adhesive phase 16, have the contraction that to constitute various resin beds such as the fly lens sheet 13 of fly lens sheet 10 of band light shield layer and plastic plate 3, the function that expands and relax.Therefore, the thickness of adhesive phase 16 is more than the 20 μ m, below the 125 μ m, more than the preferred 25 μ m, below the 75 μ m, and can be material with suitable cross-linking density, specifically, at the yang type modulus more than 100 ℃, below 200 ℃ (spring rate, more particularly, energy storage spring rate) is 1 * 10 ⁴Pa is above, 1 * 10 ⁵Below the Pa.

When the yang type modulus under said temperature surpasses 1 * 10 ⁵During Pa, then cross-linking density becomes too high, and the adhesive phase hardening can not expect to obtain the alleviation effects of counter stress.If Young modulus is less than 1 * 10 ⁴Pa, then adhesive phase became soft, and plastic plate 3 can come off from the fly lens sheet owing to conduct oneself with dignity.In addition, when the thickness of adhesive phase 16 is 20 μ m when following, then can not expect to obtain the alleviation effects of counter stress, when greater than 125 μ m, then can cause transmissivity to reduce, operability reduces, and cost rises.

The fly lens sheet is being pasted in the operation of plastic plate 3, on the surface of observer's one side of the light shield layer 15 of fly lens sheet, formed adhesive phase 16, bond plastic plate 3 on this adhesive phase 16 then.In addition, also be not limited thereto, can also on the one side of plastic plate 3, form adhesive phase 16, then adhesive phase and plastic plate 3 together are adhered on the light shield layer 15.

But the thermal shrinkage of fly lens sheet 13 is because the change in size of the film 11 of supporting fly lens 12 is subjected to very big influence.Therefore, preferably the length direction (horizontal direction) of flow direction when making the system film of film 11 and screen is consistent and makes fly lens sheet 13.

Flow direction during film 11 system films is compared with the Width of film 11, be out of shape bigger, big to the change in size of heat.Particularly when the system film, extend in the plastic sheeting that forms and become obvious.About screen, to compare with the distortion of long side direction, the anamorphose that the distortion of short side direction causes is bigger.Therefore, by the little direction of film 11 distortion is oriented on the short side direction of screen, it is lower that the anamorphose that thermal shrinkage can be caused suppresses ground.

In addition, the percent thermal shrinkage of the Width during film 11 system films (with the system film time the vertical direction of flow direction) is preferably below 0.4% under 150 ℃, 30 minutes condition.For the thermal shrinkage with film 11 suppresses lowlyer, preferably carry out annealing in process.

Embodiment

Below, by embodiment the present invention is carried out specific description, but the present invention is not limited to these embodiment.

(embodiment 1～15)

[embodiment 1]

(1) making of black transfer film

Mix raw material as follows, after bowl mill dispersion random time, by the filtrator of 5 μ m bores, the preparation carbon content is the coating of the black transfer film of 65wt%.

(coating composition)

Carbon black: Colombia carbon company (コ ロ Application PVC ア Application カ one ボ Application society) makes the RAVEN-1255130 weight portion

Adhesive resin: polyester-polyurethane (Japan weaving society makes UR-8300) 70 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

Above-mentioned coating is coated in the PET (East レ She System " Le ミ ラ-" that thickness is 12 μ m) face on and dry, coating thickness was 1 μ m after drying, 60 ℃ of following thermal treatments 48 hours.Obtain required black transfer film by following step.

[evaluation of black transfer film]

(a) mensuration of total light transmittance

Measure total light transmittance of the black transfer film of (1) manufacturing.Consequently, total light transmittance is 0.1%.Evaluating apparatus is the nephelometer HM-150 type that color technical institute makes in the village.Appreciation condition is according to Л S K-7361.

(b) affirmation that comes off of powder

The surface of the black transfer film by cotton rod wiping gently (1) manufacturing has or not black to adhere to by Visual Confirmation.Black adheres to may produce pollution when obvious in subsequent handling, therefore, in subsequent handling with NG as judgement.

In present embodiment 1, do not find that black adheres to.

(2) making of copy mold

As the processing unit (plant) that is used to make master mold, the precise laser processing machine MAS-300 that uses Belgian OPTEC company to make.As mask, use multiple row to be arranged with the mask of a plurality of claw-like peristomes.In addition, as machined object, the substrate that uses polycarbonate to constitute.

At first, form the mask picture by mask on machined object, horizontal mobile machined object utilizes the continuous in the horizontal processing and fabricating groove of laser simultaneously.Then, with mask direction half-twist in face, form the mask picture by mask on machined object then, the machined object that is along the longitudinal movement simultaneously vertically is being processed to form groove continuously by laser.By above-mentioned operation, make the master mold of lenticular spacing with X=100 μ m, Y=60 μ m.

Then, on the master mold that as above obtains, form the conducting film that constitutes by nickel by for example electroless plating method of applying.And the master mold that will be formed with conducting film is installed in the electroforming apparatus, forms nickel coating by electrochemical plating on conducting film, peels off nickel coating from master mold then.By above-mentioned operation, obtain having copy mold with the opposite relief pattern of master mold.

Then, on the face of the concavo-convex side of being formed with of the copy mold that as above obtains, form nickel coating, then, this nickel coating is peeled off from copy mold by electrochemical plating.By above-mentioned operation, obtain having copy mold with the identical concaveconvex shape of master mold.

(3) formation of fly lens sheet

At first, in the copy mold of the fly lens of lenticular spacing, flow into UV cured resin (East Asia Synesis Company makes ア ロ ニ Star Network ス) with X=100 μ m, Y=60 μ m, ulking thickness is PET film (Japan's textile company manufacturing: A4300) of 50 μ m, apply the load of 1kg by rubber rollers, simultaneously with the lens thickness homogenising.Then, from PET film irradiation 1000mJ/cm ²UV light, the UV cured resin is solidified, obtain the fly lens sheet.

(4) formation of light-shielding pattern

Then, on the fly lens sheet that as above obtains, paste photonasty bonding agent (manufacturing of East Asia Synesis Company), from lens side irradiation UV directional light (500mJ/cm ²) and form bonding non-bonding patterns.

(5) transfer printing of light-shielding pattern

Then, paste (1) resulting black transfer film in the face side of the photonasty bonding coat of fly lens sheet.Remainder by stretching black transfer film, peel off the black transfer film from the fly lens sheet, at the bonding part transfer printing black layer of photonasty bonding coat, the opening shape that forms transmissive portions is a quadrilateral and with 90% the light shielding part area occupation ratio light shield layer as desired value.By above-mentioned operation, obtain having wide 786mm * the fly lens sheet of the band light shield layer of long 1362mm size.

[embodiment 2]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, use following condition to make the fly lens sheet, the opening shape that forms transmissive portions is a quadrilateral and with 90% the light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=76 μ m, Y=46 μ m

The plastic sheeting of base material: 35 μ m

[embodiment 3]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, use following condition to make the fly lens sheet, the opening shape that forms transmissive portions is a quadrilateral and with 90% the light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=150 μ m, Y=90 μ m

The plastic sheeting of base material: 75 μ m

[embodiment 4]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, use following condition to make the fly lens sheet, the opening shape that forms transmissive portions is a quadrilateral and with 90% the light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=150 μ m, Y=120 μ m

The plastic sheeting of base material: 105 μ m

[embodiment 5]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, use following condition to make the fly lens sheet, the opening shape that forms transmissive portions is a quadrilateral and with 93% the light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=76 μ m, Y=46 μ m

The plastic sheeting of base material: 38 μ m

[embodiment 6]

At first, by making the coating of black transfer film with embodiment 1 identical materials and operation.And, above-mentioned coating is coated in the PET (East レ She System " Le ミ ラ-" that thickness is 12 μ m) face on and drying make dried thickness reach 0.5 μ m, 60 ℃ of following thermal treatments 48 hours.

Then, make the fly lens sheet of embodiment 1, use opening shape that above-mentioned black transfer film forms transmissive portions as quadrilateral and with 90% light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

[embodiment 7]

At first, by making the coating of black transfer film with embodiment 1 identical materials and operation.And, above-mentioned coating is coated in the PET (East レ She System " Le ミ ラ-" that thickness is 12 μ m) face on and dry, make dried thickness reach 2 μ m, 60 ℃ of following thermal treatments 48 hours.

Then, make the fly lens sheet of embodiment 1, use opening shape that above-mentioned black transfer film forms transmissive portions as quadrilateral and with 90% light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

[embodiment 8]

At first, mix raw material as follows, by the operation identical with embodiment 1, the preparation carbon content is the coating of the black transfer film of 45wt%.

(coating composition)

Carbon black: Colombia carbon company makes RAVEN-1255 110 weight portions

Adhesive resin: polyester-polyurethane (Japan's textile company is made UR-8300) 90 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

Then, above-mentioned coating is coated on the PET (East レ She System " Le ミ ラ-" that thickness is 12 μ m) face on and dry, making the thickness of filming after the drying was 1 μ m, 60 ℃ of following thermal treatments 48 hours.Obtain needed black transfer film by above operation.Total light transmittance of prepared black transfer film is 1.5%.

Then, make the fly lens sheet of embodiment 1, use opening shape that above-mentioned black transfer film forms transmissive portions as quadrilateral and with 90% light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

[embodiment 9]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, make embodiment 1 fly lens sheet, the opening shape that forms transmissive portions is a quadrilateral and with 90% the light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

[embodiment 10]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, make the fly lens sheet, apply anti-reflection coating (by the Xu Xiao System サ イ ト Star プ CTL-107M of dip coating coating 120nm) on the lens surface by following condition.Then, the opening shape that forms transmissive portions is a quadrilateral and with 90% the light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=100 μ m, Y=60 μ m

The plastic sheeting of base material: 50 μ m

Handle by on lens surface, implementing antireflection, reduce the surface, improve total light transmittance reflection of incident light.As the antireflection disposal route of lens surface, not special restriction can be used known technology.For example can also apply known antireflection coating agent by thin layer, can reflect by trickle concavo-convex preventing is set at lens surface.

[embodiment 11]

At first, mix raw material as follows, by the operation identical with embodiment 1, the preparation carbon content is the coating of the black transfer film of 45wt%.

(coating composition)

Carbon black: Colombia carbon company makes RAVEN-1255 110 weight portions

Adhesive resin: polyester-polyurethane (Japan's textile company is made UR-8300) 90 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

Above-mentioned coating is coated in the PET (East レ She System " Le ミ ラ-" that thickness is 12 μ m) face on and dry, making dried coating thickness was 0.5 μ m, 60 ℃ of following thermal treatments 48 hours.Obtain needed black transfer film by above operation.Total light transmittance of made black transfer film is 2.0%.

Then, make the fly lens sheet of embodiment 1, use opening shape that above-mentioned black transfer film forms transmissive portions as quadrilateral and with 90% light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

[embodiment 12]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, use following condition to make the fly lens sheet, the opening shape that forms transmissive portions is a quadrilateral and with 90% the light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=55 μ m, Y=35 μ m

The plastic sheeting of base material: 50 μ m

[embodiment 13]

Mix raw material as follows, after bowl mill dispersion random time, by the filtrator of 5 μ m bores, the preparation carbon content is the coating of the black transfer film of 50wt%.

(coating composition)

Carbon black: Colombia carbon company makes RAVEN-1255 100 weight portions

Adhesive resin: polyester-polyurethane (Japan's textile company is made UR-8300) 100 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

Then, above-mentioned coating is coated on the PET (East レ She System " Le ミ ラ-" that thickness is 12 μ m) face on and dry, the thickness that makes dried coating was 1 μ m, 120 ℃ of following thermal treatments 3 minutes.Obtain needed black transfer film by above operation.

[evaluation of black transfer film]

Total light transmittance of made black transfer film is 0.5%, does not find that powder comes off.

Make lens arra by the method identical with embodiment 1, and by making the fly lens sheet with embodiment 1 identical materials and operation.The thickness of lenticular spacing, simple lens curvature and substrate plastic film is as described below.

(creating conditions)

Curvature: in formula (1), Cx, Cy, kx, ky are as follows.

Cx＝0.0220

Cy＝0.0220

kx＝-1.0

ky＝0.8

Lenticular spacing: X=100 μ m, Y=60 μ m

The plastic sheeting of base material: 75 μ m

In the said lens sheet, the opening shape of making transmissive portions by the operation identical with embodiment 1 is a quadrilateral and with 90% the light shielding part area occupation ratio light shield layer as desired value.

[embodiment 14]

Except the coating of black transfer film is formed difference, form screen by operation, the identical materials identical with embodiment 14.

Mix raw material as follows, after bowl mill dispersion random time, by the filtrator of 5 μ m bores, the preparation carbon content is the coating of the black transfer film of 60wt%.

(coating composition)

Carbon black: Colombia carbon company makes RAVEN-1255 120 weight portions

Adhesive resin: polyester-polyurethane (Japan's textile company is made UR-8300) 80 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

Then, above-mentioned coating is coated in the PET (East レ She System " Le ミ ラ-" that thickness is 12 μ m) face on and dry, making dried coating thickness was 1 μ m, 120 ℃ of following thermal treatments 3 minutes.Obtain needed black transfer film by above operation.

Total light transmittance of made black transfer film is 0.2%.Do not find that powder comes off.

[embodiment 15]

At first, by making the black transfer film with embodiment 1 identical materials and operation.Fly lens forms the aspheric lens shape at the visual angle that dwindles above-below direction.The plastic film thickness of base material is 75 μ m.By the method mfg. moulding die identical with embodiment 1, make the fly lens sheet then, use opening shape that above-mentioned black transfer film forms transmissive portions as quadrilateral and with 70% light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

[comparative example 1]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, use following condition to make the fly lens sheet, form with 90% light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=250 μ m, Y=150 μ m

The plastic sheeting of base material: 125 μ m

[comparative example 2]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, use following condition to make the fly lens sheet, form with 85% light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=50 μ m, Y=30 μ m

The plastic sheeting of base material: 25 μ m

[comparative example 3]

At first, except the dried applied thickness that makes black layer is 2.5 μ m, by making the black transfer film with embodiment 1 identical materials and operation.

Then, use following condition to make the fly lens sheet, form with 90% light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=100 μ m, Y=60 μ m

The plastic sheeting of base material: 50 μ m

[comparative example 4]

At first, mix raw material as follows, by the operation identical with embodiment 1, the preparation carbon content is the coating of the black transfer film of 40wt%.

(coating composition)

Carbon black: Colombia carbon company makes RAVEN-1255 80 weight portions

Adhesive resin: polyester-polyurethane (Japan's textile company is made UR-8300) 120 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

Then, above-mentioned coating is coated in the PET (East レ She System " Le ミ ラ-" that thickness is 12 μ m) face on and dry, the thickness that makes dried coating was 0.5 μ m, 60 ℃ of following thermal treatments 48 hours.

Then, measure total light transmittance of the black transfer film that as above obtains, the result is 2.3%, because black concentration is low, thereby can't carry out the evaluation of subsequent handling.

[comparative example 5]

At first, mix raw material as follows, by the operation identical with embodiment 1, the preparation carbon content is the coating of the black transfer film of 80wt%.

(coating composition)

Carbon black: Colombia carbon company makes RAVEN-1255 160 weight portions

Adhesive resin: polyester-polyurethane (Japan's textile company is made UR-8300) 40 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

Then, above-mentioned coating is coated in the PET (East レ She System " Le ミ ラ-" that thickness is 12 μ m) face on and dry, the thickness that makes dried coating was 0.5 μ m, 60 ℃ of following thermal treatments 48 hours.

And, the powder of the above-mentioned black transfer film that obtains come off confirms that the result is NG, thereby stop the evaluation of subsequent handling.

[comparative example 6]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, use following condition to make the fly lens sheet, form with 80% light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=100 μ m, Y=60 μ m

The plastic sheeting of base material: 50 μ m

[comparative example 7]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, use following condition to make the fly lens sheet, form with 65% light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=100 μ m, Y=60 μ m

The plastic sheeting of base material: 50 μ m

[comparative example 8]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, use following condition to make the fly lens sheet, form with 90% light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=100 μ m, Y=60 μ m

The plastic sheeting of base material: 75 μ m

[comparative example 9]

At first, by making the black transfer film with embodiment 1 identical materials and operation.

Then, use following condition to make bi-convex lens sheet.Formation is with 90% the light shielding part area occupation ratio light shield layer as desired value.Except described condition, use with embodiment 1 identical materials, identical operation and make.

(creating conditions)

Lenticular spacing: X=100 μ m

The plastic sheeting of base material: 75 μ m

[evaluation method]

Fly lens sheet at the band light shield layer of embodiment 1～15 and comparative example 1～9 carries out following evaluation.

[evaluation of the fly lens sheet of band light shield layer]

(a) affirmation of the mensuration of light shielding part area occupation ratio and transmissive portions shape

Cut any part of fly lens sheet of the band light shield layer of the foregoing description and comparative example with the limit of 1cm, taken pictures in the light shield layer surface, use image analysis software, measure the area occupation ratio of light shielding part by optical microscope.Simultaneously, the shape by the observation by light microscope transmissive portions.

(b) mensuration of total light transmittance

Inject light from the lens side of the fly lens sheet of the band light shield layer of the foregoing description and comparative example, measure.Evaluating apparatus is the nephelometer HM-150 type that color technical institute makes in the village.Appreciation condition is according to Л S K-7361.

(c) evaluation of contrast

Cut the lenticular screen of the rear-projection TV (グ ラ Application De ベ ガ) that Sony company makes, with the fly lens screen of the band light shield layer of the foregoing description and comparative example be embedded into above-mentioned cut in the position fixing.Projected images and compares by the formed part of existing biconvex lens (cylindrical lens) screen, estimates with following 3 grade standards.

*: than existing poor contrast

△: suitable with existing contrast

Zero: than existing excellent contrast

The measurement result of the foregoing description and comparative example is shown in table 3, table 4 and table 5.

Table 3

Embodiment			Embodiment 1	Embodiment 2	Embodiment 3	Embodiment 4	Embodiment 5	Embodiment 6	Embodiment 7	Embodiment 8
											The black transfer film	Black layer thickness	(μm)	1.0	1.0	1.0	1.0	1.0	0.5	2.0	1.0
Carbon content	(wt％)	65	65	65	65	65	65	65	45
										Total light transmittance		(％)	0.1	0.1	0.1	0.1	0.1	0.5	0.01	1.5
Powder comes off	OK/NG	OK	OK	OK	OK	OK	OK	OK	OK
										Lens		Spacing	X(μm)	100	76	150	150	76	100	100	100
Y(μm)	60	46	90	120	46	60	60	60
									Sag (degree of depth)		(μm)		45	35	68	90	35	45	45	45
Base material	Kind	-	PET	PET	PET	PET	PET	PET				PET									PET
									Thickness	(μm)	50		35	75	105	38	50	50	50
	The photonasty bonding coat	Thickness	(μm)	20	20	20	20	20				20								20	20
Light shield layer									Thickness	(μm)	1.0		1.0	1.0	1.0	1.0	0.5	2.0	1.0
	Opening shape		Quadrilateral	Quadrilateral	Quadrilateral	Quadrilateral	Quadrilateral	Quadrilateral				Quadrilateral								Quadrilateral
									Light shielding part target area rate	(％)	90		90	90	90	93	90	90	90
	Lens	Total light transmittance (from lens one side incident)	(％)	90	87	90	90	65				90								90	90
The light shielding part area occupation ratio									(％)	90	93		90	90	95	90	90	90
		Contrast		○	○	○	○	△				○							○	○

Table 4

Embodiment			Embodiment 9	Embodiment 10	Embodiment 11	Embodiment 12	Embodiment 13	Embodiment 14	Embodiment 15
										The black transfer film	Black layer thickness	(μm)	1.0	1.0	0.5	1.0	1.0	1.0	1.0
Carbon content	(wt％)	65	65	45	65	50	60	65
									Total light transmittance		(％)	0.1	0.1	2	0.1	0.5	0.2	0.1
Powder comes off	OK/NG	OK	OK	OK	OK	OK	OK	OK
									Lens		Spacing	X(μm)	100	100	100	55	100	100	100
Y(μm)	60	60	60	35	60	60	60
								Sag (degree of depth)		(μm)		45	45	45	45	40	45	35
Base material	Kind	-	PET	PET	PET	PET	PET				PET								PET
								Thickness	(μm)	50		50	50	50	75	50	75
	The photonasty bonding coat	Thickness	(μm)	20	20	20	10				20							20	20
Light shield layer								Thickness	(μm)	1.0		1.0	1.0	1.0	1.0	1.0	1.0
	Opening shape		Quadrilateral	Quadrilateral	Quadrilateral	Quadrilateral	X-shaped				X-shaped							Linear
								Light shielding part target area rate	(％)	91		90	90	90	90	90	70
	Lens	Total light transmittance (from lens one side incident)	(％)	89	95	90	90				85							85	90
The light shielding part area occupation ratio								(％)	91	90		90	90	90	90	70
		Contrast		○	○	△	△				△						△	△

Table 5

The fly lens sheet of the band light shield layer of embodiment 1～15 since constitute the carbon content of the light shielding part of light shield layer be 45wt% above, below the 65wt%, thereby can make the transmissive portions of needed opening shape accurately.That is, can access the area occupation ratio height of light shielding part, the also high good result of total light transmittance of transmissive portions.

In addition, the fly lens sheet of the band light shield layer of embodiment 15 is because light shielding part target area rate is 70%, though the therefore contrast identical with existing product, on the downwards angle of visibility aspect wideer than existing product, obtained good result.

Using biconvex lens to form in the lens of comparative example 9 of light shield layer, form light shield layer by optimal conditions of exposure, be 70% lens but can't form the light shielding part area occupation ratio, identical with the contrast of existing product.

And,, light shielding part area occupation ratio, black layer thickness, lenticular spacing, PET thickness are estimated based on the evaluation result of above-mentioned (a) and (b), (c).Below, describe at its evaluation result.

[evaluation of light shielding part area occupation ratio]

At the light shielding part area occupation ratio is that contrast is identical with existing product in the fly lens sheet of band light shield layer of 80% comparative example 6.

At the light shielding part area occupation ratio is that contrast is poorer than existing product in the fly lens sheet of band light shield layer of 65% comparative example 7.

In the fly lens sheet of the band light shield layer of embodiment 5, be 93% to make according to the light shielding part area occupation ratio, but actually reach 95%.Because the residual black layer of peristome, so transmissivity reduction, but obtain the contrast identical with existing product.

By above-mentioned discussion result as can be known, the shared area of above-mentioned light shielding part is preferably more than 70% of the total area of above-mentioned light shield layer.

[evaluation of black layer]

Surpass in the fly lens sheet of band light shield layer of comparative example 3 of 2.0 μ m at the coating thickness of black layer, the surface that can observe light shield layer such as cracks at bad phenomenon.

In addition, use the fly lens sheet of coating thickness, can not cover outer light fully, compare degradation in contrast with existing product less than the black layer manufacturing band light shield layer of 0.5 μ m.

By above-mentioned evaluation result as can be known, the thickness of the black layer of black transfer film is preferably more than the 0.5 μ m, below the 2.0 μ m.

[evaluation of lenticular spacing]

At the thickness that lenticular spacing surpasses 200 μ m, substrate plastic film is that the light shielding part area occupation ratio is 90% in the fly lens sheet of band light shield layer of comparative example 1 of 125 μ m, is 90% from total light transmittance of lens side.With respect to not loss of incident light, can obtain good characteristic.But, because the lenticular spacing of fly lens sheet is big, so owing to the pixel pitch on the screen causes producing Moire fringe.

In the fly lens sheet of the band light shield layer of the comparative example 2 of lenticular spacing less than 35 μ m, being made into the light shielding part area occupation ratio is 85%, but because the area of light collecting part is little, thereby can not form desirable light shield layer, because residual black layer in peristome, thereby to form total light transmittance be 33% dark lens.

By above-mentioned evaluation result as can be known, lenticular spacing is preferably more than the 35 μ m, below the 150 μ m.

[evaluation of PET film thickness]

In comparative example 8, because the thickness of PET film makes its spot position skew from lens, thereby when carrying out the sensitization of photonasty bonding coat, opening shape forms uncertain shape, and residual black layer, therefore forms total light transmittance less than 65% lens.Compare with existing product, contrast reduces.

[evaluation of screen]

Then, the diffusion property (Luminance Distribution) of the rear projection screen of the embodiment 1 that as above obtains is estimated.

Figure 21 represents the diffusion property (Luminance Distribution) of the rear projection screen horizontal direction of embodiment 1.Figure 22 represents the diffusion property (Luminance Distribution) of the rear projection screen vertical direction of embodiment 1.The transverse axis of Figure 21 and Figure 22 is represented the angle of relative screen normal direction.In addition, in Figure 22, no Luminance Distribution is caused by condition determination in the following scope of about-20 degree, still with the performance of embodiment 1 screen without any relation.

As can be seen from Figure 21, the highest in the normal direction brightness of screen, along with being offset to horizontal direction from normal direction, brightness reduces gradually.In addition, also the highest in the normal direction brightness of screen as can be seen from Figure 22, along with from normal direction to vertical offset, brightness reduces gradually.That is, from Figure 21 and Figure 22 as can be known, by 1 fly lens sheet in the horizontal direction with vertical direction diffusion light widely, and have anisotropy with it.

In addition, at the rear projection screen of comparative example 9, also carry out the evaluation of diffusion property similarly to Example 1 with bi-convex lens sheet.In the rear projection screen of this comparative example 9, diffusion property about horizontal direction, the highest in the brightness of screen normal direction, along with being offset to horizontal direction from normal direction, brightness reduces gradually, and about the diffusion property of vertical direction, the highest in the brightness of screen normal direction, along with from normal direction to vertical offset, brightness sharply reduces.

As mentioned above, the rear projection screen of embodiment 1 can play in the horizontal direction and the vertical direction remarkable result of diffusion light widely, and this acts in the rear projection screen of comparative example 9 and can not obtain.

Then, as a reference, the result who the Digimicroscope " VHX200 " that uses キ one エ Application ス company to make is observed light shield layer describes.Figure 23 A represents that the light shielding part area occupation ratio is the observations of 92% light shield layer.Figure 23 B represents that the light shielding part area occupation ratio is the observations of 88% light shield layer.Figure 23 C represents that the light shielding part area occupation ratio is the observations of 80% light shield layer.In addition, be by making at the fly lens sheet of the band light shield layer shown in Figure 23 A～Figure 23 C with the roughly the same method of embodiment 1.

As Figure 23 A～Figure 23 C as can be known, though more or less having produced distortion, transmissive portions has roughly tetragonal shape.In addition, in Figure 24, shown that the transmissive portions of the light shield layer shown in embodiment 13, embodiment 14 is shaped as the sample photo of X-shaped shape (perhaps Bian Xing X-shaped shape).In addition, the transmissive portions of light shield layer is shaped as the formation example of rectilinear form (perhaps Bian Xing rectilinear form) shown in Fig. 8 A, B.

(embodiment 16～21)

[embodiment 16]

(1) manufacturing of black transfer film

Mix raw material as follows, after bowl mill dispersion random time, by the filtrator of 5 μ m bores, the preparation carbon content is the coating of the black transfer film of 60wt%.

(coating composition)

Carbon black: Colombia carbon company makes RAVEN-1255 120 weight portions

Adhesive resin: polyester-polyurethane (Japan's textile company is made UR-8300) 80 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

Above-mentioned coating is coated in the PET (East レ She System " Le ミ ラ-" that thickness is 12 μ m) face on and dry, the thickness that makes dried coating was 1 μ m, 60 ℃ of following thermal treatments 48 hours.Obtain needed black transfer film by above operation.

[evaluation of black transfer film]

(a) mensuration of total light transmittance

Measure total light transmittance of the black transfer film of (1) manufacturing.Consequently, total light transmittance is 0.1%.Evaluating apparatus is the nephelometer HM-150 type that color technical institute makes in the village.Appreciation condition is according to Л S K-7361.

(b) mensuration of martensite hardness

Measure the martensite hardness of black layer of the black transfer film of (1) manufacturing under the following conditions.The result is 80N/mm ²

Evaluating apparatus: ピ コ デ Application one (micro hardness tester that Off イ Star シ ヤ one イ Application ス ト Le メ Application Star company makes)

In addition, when forming on this class elastic body of macromolecule membrane when filming, the extruding degree of depth when measuring can obtain comprising the hardness of base material spring rate.This test is in order only to measure the hardness of black layer exactly, measures under the extruding degree of depth that the base material spring rate does not influence (film for gross thickness 1/10).

(2) making of copy mold

As the processing unit (plant) that is used to make master mold, the precise laser processing machine MAS-300 that uses Belgian OPTEC company to make.As mask, use the mask that is arranged with a plurality of claw-like peristomes as Figure 13 B illustration ground multiple row.In addition, as machined object, the substrate that uses polycarbonate to constitute.

At first, on machined object, form the mask picture, machined object is laterally moved, utilize the continuous in the horizontal processing and fabricating groove of laser by mask.Then, with mask direction half-twist in face, form mask images via mask on machined object then, the machined object that is along the longitudinal movement simultaneously vertically is being processed to form groove continuously by laser.By above-mentioned operation, make the master mold of lenticular spacing with X=100 μ m, Y=60 μ m.

Then, on the above-mentioned master mold that obtains, form the conducting film that constitutes by nickel by for example electroless plating method of applying.And the master mold that will be formed with conducting film is installed in the electroforming apparatus, by electrochemical plating, forms nickel coating on conducting film, then, peels off nickel coating from master mold.By above-mentioned operation, obtain having copy mold with the opposite relief pattern of master mold.

(3) formation of fly lens sheet

At first, in the copy mold of the fly lens sheet of lenticular spacing, flow into UV gel-type resin (East Asia Synesis Company: ア ロ ニ Star Network ス) with X=100 μ m, Y=60 μ m, ulking thickness is PET film (Japan's textile company manufacturing: A4300) of 50 μ m, apply the load of 1kg by rubber rollers, simultaneously with the lens thickness homogenising.Then, from PET film irradiation 1000mJ/cm ²UV light, the UV cured resin is solidified, obtain the fly lens sheet.

(4) formation of light-shielding pattern

Then, in order on the above-mentioned fly lens sheet that obtains, to form the photonasty bonding coat, mix following constituent by the cylinder grinding machine and make coating and apply.Drying is 10 minutes under 100 ℃, forms the photonasty bonding coat of the about 20 μ m of thickness.

(coating composition)

Ethyl acrylate 55 weight portions

Trimethylolpropane triacrylate 40 weight portions

Light trigger イ Le ガ キ ユ ア 184 (trade name, チ バ ス ペ シ ヤ Le テ イ ケ ミ カ Le company makes) 5 weight portions

From lens side irradiation UV directional light (100mJ/cm ²), form recess in the optically focused zone of photonasty bonding coat.

(concave depth mensuration)

Part to above-mentioned photonasty bonding coat is sampled, and measures the amount of recess (degree of depth) of recess.In mensuration, use non-contact three-dimensional form measuring instrument NH-3 (manufacturing of three hawk light devices (share)).The result is that the amount of recess of recess is 1.8 μ m.

(5) transfer printing of light-shielding pattern

Then, on the face of the photonasty bonding coat of fly lens sheet, paste (1) resulting black transfer film.The remainder of stretching black transfer film is peeled off the black transfer film from the fly lens sheet, at the bonding part transfer printing black layer of photonasty bonding coat, forms light shield layer.By above-mentioned operation, obtain having wide 786mm * the fly lens sheet of the band light shield layer of long 1362mm size.

And, paste double-sided adhesive sheet (manufacturing of ス リ one エ system company) in the face side of light shield layer, on the face opposite, paste diffuser plate and obtain the fly lens sheet with lens.

[embodiment 17]

At first, by making black transfer film and fly lens sheet with embodiment 16 identical materials and operation.Then, form the photonasty bonding coat, from lens side irradiation UV directional light (200mJ/cm by following coating ²), form recess in the optically focused zone of photonasty bonding coat.The amount of recess of recess is 3 μ m.Then, transfer printing black layer and form light shield layer.Except described condition, use with embodiment 16 identical materials, identical operation and make.

(coating composition)

Ethyl acrylate 50 weight portions

Dipentaerythritol acrylate 40 weight portions

イ Le ガ キ ユ ア 184 (trade name, チ バ ス ペ シ ヤ Le テ イ ケ ミ カ Le company makes) 5 weight portions

[embodiment 18]

At first, by making black transfer film and fly lens sheet with embodiment 16 identical materials and operation.Then, form the photonasty bonding coat, from lens side irradiation UV directional light (50mJ/cm ²), form recess in the optically focused zone of photonasty bonding coat.The amount of recess of recess is 0.05 μ m.Then, transfer printing black layer and form light shield layer.Except described condition, use with embodiment 16 identical materials, identical operation and make.

[embodiment 19]

At first, by making black transfer film and fly lens sheet with embodiment 16 identical materials and operation.Then, form the photonasty bonding coat, from lens side irradiation UV directional light (500mJ/cm ²), form recess in the optically focused zone of photonasty bonding coat.The amount of recess of recess is 7 μ m.Then, transfer printing black layer and form light shield layer.Except described condition, use with embodiment 16 identical materials, identical operation and make.

[embodiment 20]

At first, mix raw material as follows, make the black transfer film by the operation identical with embodiment 16.Total light transmittance is that (the Device Testing limit is following), martensite hardness are 30N/mm below 0.05% ²

(coating composition)

Carbon black: Colombia carbon company makes RAVEN-1255 150 weight portions

Adhesive resin: polyester-polyurethane (Japan's textile company is made UR-8300) 50 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

Afterwards by making the fly lens sheet of being with light shield layer with embodiment 16 identical materials and operation.The amount of recess of the recess that forms in the optically focused zone of photonasty bonding coat is 1.8 μ m.

[embodiment 21]

At first, mix raw material as follows, make the black transfer film by the operation identical with embodiment 16.Total light transmittance is 0.5%, martensite hardness is 200N/mm ²

(coating composition)

Carbon black: Colombia carbon company makes RAVEN-1255 110 weight portions

Adhesive resin: polyester-polyurethane (Japan's textile company is made UR-8300) 90 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

Afterwards by making the fly lens sheet of being with light shield layer with embodiment 16 identical materials and operation.The amount of recess of the recess that forms in the optically focused zone of photonasty bonding coat is 1.8 μ m.

[comparative example 10]

At first, by making black transfer film and fly lens sheet with embodiment 16 identical materials and operation.Total light transmittance is 0.1%, martensite hardness is 80N/mm ²Then, form the photonasty bonding coat, from lens side irradiation UV directional light (100mJ/cm by following coating ²), form recess in the optically focused zone of photonasty bonding coat.The amount of recess of recess is 0.03 μ m.Then, transfer printing black layer and form light shield layer.Except described condition, use with embodiment 16 identical materials, identical operation and make.

(coating composition)

Ethyl acrylate 60 weight portions

2-Ethylhexyl Alcohol acrylate 35 weight portions

イ Le ガ キ ユ ア 184 (trade name, チ バ ス ペ シ ヤ Le テ イ ケ ミ カ Le company makes) 5 weight portions

[comparative example 11]

Mix raw material as follows, make the black transfer film by the operation identical with embodiment 16.Total light transmittance is that (the Device Testing boundary is following), martensite hardness are 20N/mm below 0.05% ²Because the cohesive force of filming of black layer is weak, the generation powder comes off, thereby can't carry out the evaluation of following operation.

(coating composition)

Carbon black: Colombia carbon company makes RAVEN-1255 140 weight portions

Adhesive resin: polyester-polyurethane (Japan's textile company is made UR-8300) 60 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

[comparative example 12]

At first, mix raw material as follows, make the black transfer film by the operation identical with embodiment 16.Total light transmittance is that 1.5% (the Device Testing boundary is following), martensite hardness are 220N/mm ²

(coating composition)

Carbon black: Colombia carbon company makes RAVEN-1255 80 weight portions

Adhesive resin: polyester-polyurethane (Japan's textile company is made UR-8300) 120 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

Afterwards by with the fly lens sheet of embodiment 16 identical materials and operation manufacturing band light shield layer.The amount of recess of the recess that forms in the optically focused zone of photonasty bonding coat is 1.8 μ m.

[evaluation method]

Fly lens sheet at the band light shield layer of embodiment 16～21 and comparative example 10～12 carries out following evaluation.

[evaluation of the fly lens sheet of band light shield layer]

(a) affirmation of the mensuration of light shielding part area occupation ratio and transmissive portions shape

Cut any part of fly lens sheet of the band light shield layer of the foregoing description and comparative example with the limit of 1cm, taken pictures in the light shield layer surface, use image analysis software, measure the area occupation ratio of light shielding part by optical microscope.Simultaneously, the shape by the observation by light microscope transmissive portions.

(b) mensuration of total light transmittance

Inject light and measure from the lens side of the fly lens sheet of the band light shield layer of the foregoing description and comparative example.Evaluating apparatus is the nephelometer HM-150 type that color technical institute makes in the village.Appreciation condition is according to Л S K-7361.

(c) evaluation of contrast

Cut the bi-convex lens sheet of the rear-projection TV (グ ラ Application De ベ ガ) that Sony company makes, with the fly lens sheet of the band light shield layer of the foregoing description and comparative example be embedded into above-mentioned cut in the position fixing.Projected images compares with the part that is formed by existing biconvex lens (cylindrical lens) sheet, estimates with following 3 grade standards.

*: than existing poor contrast

△: suitable with existing contrast

Zero: than existing excellent contrast

The measurement result of the foregoing description and comparative example is shown in table 6, table 7.

Table 6

Embodiment			Embodiment	16	Embodiment 17	Embodiment 18	Embodiment 19	Embodiment 20	Embodiment 21
										The black transfer film	Black layer thickness	(μm)	1.0	1.0	1.0	1.0	1.0	1.0
Carbon content	(wt％)	60	60	60	60	75	45
								Total light transmittance	(％)		0.1	0.1	0.1	0.1	0.05	0.5
	Martensite hardness	(N/mm2)	80	80	80	80	30										200
								Lens	Spacing	X(μm)	100	100	100	100	100	100
Y(μm)	60	60	60	60	60	60
							Sag (degree of depth)			(μm)	45	45	45	45	45	45
Base material	Kind	-	PET	PET	PET	PET			PET								PET
							Thickness	(μm)		50	50	50	50	50	50
	The photonasty bonding coat	Amount of recess	(μm)	1.8	3	0.05			7							1.8	1.8
Light shield layer							Thickness	(μm)		1.0	1.0	1.0	1.0	1.0	1.0
	Opening shape		Quadrilateral	Quadrilateral	Quadrilateral	Quadrilateral			Quadrilateral							Quadrilateral
							Lens	Total light transmittance (from lens one side incident)		(％)	90	90	85	80	90		90
The light shielding part area occupation ratio	(％)	90	90	93	90	90			90
								Contrast			○	○	△	△	○	○

Table 7

The area occupation ratio height of the light shielding part of the fly lens sheet of embodiment 16,17,20 and 21 band light shield layer, total light transmittance of transmissive portions are also high, and the result is good.

The amount of recess of the recess of embodiment 18 is less to be 0.05 μ m, is attached with black layer on the part of transmissive portions, but total light transmittance is than existing product fine.

In addition, embodiment 19 is because the amount of recess of recess is big, thereby forms air layer between the adhesive phase of photonasty bonding coat and diffuser plate, boundary reflection takes place, total light reduced rate appearance reduction to a certain degree.But, still than existing product fine.

In addition, in the fly lens screen of recess less than the comparative example 10 of 0.05 μ m of transmissive portions, black layer arranged in that transmissive portions is residual, form total light transmittance and be 60% dark lens.

Surpass 200N/mm in martensite hardness ²The fly lens screen of comparative example 12 in, the cohesiveness height of filming of black layer is difficult to form the light shield layer as the optically focused shape of lens.The result is that the area occupation ratio of light shielding part is low, poor contrast.

(embodiment 22～27)

[embodiment 22]

(1) manufacturing of black transfer film

Mix raw material as follows, after bowl mill dispersion random time, by the filtrator of 5 μ m bores, the coating of preparation black transfer film.

(coating composition)

Carbon black: Colombia carbon company makes RAVEN-1255 130 weight portions

Adhesive resin: polyester-polyurethane (Japan's textile company is made UR-8300) 70 weight portions

Solvent: MEK 500 weight portions

Toluene 500 weight portions

Above-mentioned coating is coated in the PET (East レ She System " Le ミ ラ-" that thickness is 12 μ m) face on and dry, the thickness that makes dried coating was 1 μ m, 60 ℃ of following thermal treatments 48 hours.Obtain needed black transfer film by above operation.

(2) making of copy mold

As the processing unit (plant) that is used to make master mold, the precise laser processing machine MAS-300 that uses Belgian OPTEC company to make.As mask, use multiple row to be arranged with the mask of a plurality of claw-like peristomes.In addition, as machined object, use the substrate that constitutes by polycarbonate.

At first, on machined object, form mask images, machined object is laterally moved, utilize the continuous in the horizontal processing and fabricating groove of laser via mask.Then, with mask direction half-twist in face, form the mask picture via mask on machined object then, the machined object that is along the longitudinal movement simultaneously vertically is being processed to form groove continuously by laser.By above-mentioned operation, make the master mold of lenticular spacing with X=100 μ m, Y=60 μ m.

Then, on the above-mentioned master mold that obtains, form the conducting film that constitutes by nickel by for example electroless plating method of applying.And the master mold that will be formed with conducting film is installed in the electroforming apparatus, by electrochemical plating, forms nickel coating on conducting film, peels off nickel coating from master mold then.By above-mentioned operation, obtain having copy mold with the opposite relief pattern of master mold.

Then, be formed with on the face of a concavo-convex side, form nickel coating, then this nickel coating is peeled off from copy mold by electrochemical plating at the above-mentioned copy mold that obtains.By above-mentioned operation, obtain having copy mold with the identical concaveconvex shape of master mold.

(3) formation of fly lens sheet

At first, in the copy mold of the fly lens sheet of lenticular spacing, flow into UV cured resin (East Asia Synesis Company makes ア ロ ニ Star Network ス) with X=100 μ m, Y=60 μ m, ulking thickness is PET film (Japan's textile company manufacturing: A4300), apply the load of 1kg simultaneously with the lens thickness homogenising by rubber rollers of 50 μ m.Then, from PET film irradiation 1000mJ/cm ²UV light, the UV cured resin is solidified, obtain the fly lens sheet.

(mensuration of percent thermal shrinkage)

Horizontal percent thermal shrinkage (short side direction of screen) when measuring above-mentioned PET film system film." the EXSRAR TMA/SS6000 " that test machine uses エ ス ア イ ア イ Na ノ テ Network ノ ロ ジ one company to make.Condition determination is 150 ℃, 30 minutes.The result is that percent thermal shrinkage is 0.2%.

(4) formation of light-shielding pattern

Then, on the above-mentioned fly lens sheet that obtains, paste photonasty bonding agent (manufacturing of East Asia Synesis Company), from lens one side irradiation UV directional light (500mJ/cm ²) bonding/non-bonding patterns of formation.

(5) transfer printing of light-shielding pattern

Then, paste by (1) resulting black transfer film in the face side of the photonasty bonding coat of fly lens sheet.The remainder of stretching black transfer film is peeled off the black transfer film from the fly lens sheet, and transfer printing black layer on the bonding part of photonasty bonding coat forms with 90% the light shielding part area occupation ratio light shield layer as desired value.By above-mentioned operation, obtain having wide 786mm * the fly lens sheet of the band light shield layer of long 1362mm size.

(6) on plastic plate, form hard conating

Use rod to be coated with the hard coating agent (Chinese coating manufacturing) of machine agent at the bottom of coating contains non-solvent on the face of plastic plate (the MS plate that Japanese ア Network リ エ one ス company makes), use ultraviolet irradiation machine (manufacturings of ウ シ オ motor company) to shine 500mJ/cm ²Ultraviolet ray it is solidified, forming thickness is the hard conating of 10 μ m.

(7) formation of adhesive phase

In order on another face of above-mentioned plastic plate, to form adhesive phase, mix following component by the cylinder grinding machine and make coating and apply.Drying is 5 minutes under 100 ℃, forms the adhesive phase of about 50 μ m.

(coating composition)

Butyl acrylate 90 weight portions

Acrylic acid 5 weight portions

Vinyl acetate 5 weight portions

Isocyanate crosslinking 3 weight portions

(mensuration of Young modulus)

Measure the Young modulus of adhesive phase.Determinator uses ア イ テ イ one to measure the determination of viscoelasticity device " DVA-220 " that control (Co., Ltd.) is made.Condition determination is stretching condition (5Hz).Measure the viscoelasticity curve.Read maximal value, the minimum value of 100 ℃～200 ℃ energy storage spring rate by curve, minimum value is 2 * 10 ⁴Pa (100 ℃), maximal value are 5 * 10 ⁴Pa (200 ℃).

(8) paste

The flow direction of the base film of above-mentioned fly lens sheet is made as the long side direction of plastic plate (perhaps screen), pastes.When pasting, use high precision labelling machine (HAL that Sankyo Co., Ltd makes).

[embodiment 23]

At first, by making black transfer film and the fly lens sheet of being with light shield layer with embodiment 22 identical materials and operation.Then, use forms the thick hard conating of 10 μ m with embodiment 22 identical materials on a face of plastic plate.On another face of plastic plate, form the adhesive phase of following composition.The thickness of adhesive phase is 20 μ m.The minimum value of Young modulus is 1 * 10 ⁴Pa (100 ℃), maximal value are 5 * 10 ⁴Pa (200 ℃).The flow direction of the base film of fly lens sheet is made as the long side direction of plastic plate, pastes, make the fly lens screen by the operation identical with embodiment 22.

(coating composition)

Butyl acrylate 80 weight portions

Acrylic acid 10 weight portions

Vinyl acetate 10 weight portions

Isocyanate crosslinking 1 weight portion

Except described condition, by making with embodiment 22 identical materials, identical operation.

[embodiment 24]

Except the thickness of adhesive phase is the 125 μ m, by making with embodiment 22 identical materials, identical operation.

[embodiment 25]

Except the thickness of adhesive phase is 50 μ m and uses following coating forms, by making with embodiment 22 identical materials, identical operation.The minimum value of the poplar third constellations modulus of adhesive phase is 4 * 10 ⁴Pa (100 ℃), maximal value are 9 * 10 ⁴Pa (200 ℃).Plastic plate uses warped boar.

(coating composition)

Butyl acrylate 80 weight portions

Acrylic acid 10 weight portions

Vinyl acetate 5 weight portions

Isocyanate crosslinking 5 weight portions

[embodiment 26]

Except the thickness of the base film of fly lens sheet is the 38 μ m, by making with embodiment 22 identical materials, identical operation.Percent thermal shrinkage is 0.4%.

[embodiment 27]

Except the thickness of the base film of fly lens sheet is the 100 μ m, by making with embodiment 22 identical materials, identical operation.Percent thermal shrinkage is 0.05%.

[comparative example 13]

Except the thickness of adhesive phase is the 150 μ m, by making with embodiment 22 identical materials, identical operation.

[comparative example 14]

Except the thickness of adhesive phase is the 10 μ m, by making with embodiment 22 identical materials, identical operation.

[comparative example 15]

Except the thickness of adhesive phase is 50 μ m and uses following coating forms, by making with embodiment 22 identical materials, operation.The minimum value of the Young modulus of adhesive phase is 7 * 10 ⁴Pa (100 ℃), maximal value are 5 * 10 ⁵Pa (200 ℃).

(composition of coating)

Butyl acrylate 85 weight portions

Acrylic acid 10 weight portions

Vinyl acetate 5 weight portions

Isocyanate crosslinking 20 weight portions

[comparative example 16]

At first, by making black transfer film and the fly lens sheet of being with light shield layer with embodiment 22 identical materials and operation.At this moment, the flow direction of the base film of fly lens sheet is made as the short side direction of plastic plate, pastes, make the fly lens screen by the operation identical with embodiment 22.The percent thermal shrinkage of base film is 1.0%.

[evaluation method]

At the fly lens screen of the foregoing description 22～27 and comparative example 13～16, just carry out following evaluation before and after the environmental test.

(environmental test condition)

1, under 25 ℃, 50% environment, measures amount of bow and confirm image fault

2, under 60 ℃, 90% environment, preserve 24 hours after, measure amount of warpage

3, under 25 ℃, 50% environment, place 24 hours after, measure amount of warpage and definite image fault

[evaluation of screen-bending amount]

The hard conating face of plastic plate is made as the surface, is supporting-point with the upper left side, hangs screen.Hitch (short side direction) central authorities about the screen with cord, use steel ruler to measure vertical range from the cord to the plastic plate.Write down the amount of warpage under the various environment, with (maximal value-minimum value) as the warpage variable quantity.

[evaluation of image fault]

Pull down the lenticular screen of the rear projection type televisions (グ ラ Application De ベ ガ) of Sony company manufacturing, the fly lens screen that embeds the foregoing description and comparative example is also fixing.The grid pattern of projection 5cm spacing confirms to have image-distortion-free before and after environment is preserved.

The measurement result of the foregoing description and comparative example is shown in table 8 and table 9.

Table 8

Embodiment			Embodiment	22	Embodiment 23	Embodiment 24	Embodiment 25	Convergent force 26	Embodiment 27
										Constitute
Adhesive phase	Thickness	(μm)	50	20	125	50	50	50
									Young modulus (minimum)	(Pa)	2.E+04	1.E+04	2.E+04	4.E+04	2.E+04	2.E+04
	Young modulus (maximum)	(Pa)	5.E+04	5.E+04	5.E+04	9.E+04	5.E+04	5.E+04
									Paste direction	Screen		Minor face	Minor face	Minor face	Minor face	Minor face	Minor face
The lens base material direction		Width	Width	Width	Width	Width	Width
								Base material		Thickness	(μm)	50	50	50	50	38	100
Percent thermal shrinkage (short side direction of screen)	(％)	0.2	0.2	0.2	0.2	0.4	0.05
									Evaluation result
Warpage	The band warpage	Have/do not have	Do not have	Do not have	Do not have	Have	Do not have	Do not have
									Minor face warpage variation	(mm)	15	27	13	13	10	18
	Variation before and after preserving (environment is preserved the back-initial stage)	(mm)	1	5	0	2	1	3
									Image	Distortion		○	△	○	○	○	○
Because the reduction of the transmissivity that the light shielding part surplus causes		○	△	○	○	○	○

Table 9

Comparative example				Comparative example 13	Comparative example 14	Comparative example 15	Comparative example 16
								Constitute
Adhesive phase	Thickness		(μm)	150	10	50	50
								Young modulus (minimum)		(Pa)	2.E+04	2.E+04	7.E+04	2.E+04
	Young modulus (maximum)		(Pa)	5.E+04	5.E+04	5.E+05	5.E+04
								Paste direction	Screen			Minor face	Minor face	Minor face	Minor face
The lens base material direction			Width	Width	Width	Flow direction
							Base material		Thickness		(μm)	50	50	50	50
Percent thermal shrinkage (short side direction of screen)		(％)	0.2	0.2	0.2	1
								Evaluation result
Warpage		The band warpage	Have/do not have	Do not have	Do not have	Do not have	Do not have
								The warpage variation of minor face	(mm)	13	25	13	28
		Variation before and after preserving (environment is preserved the back-initial stage)	(mm)	0	-7	-3	-10
								Image		Distortion		○	×	×	×
Because the reduction of the transmissivity that the light shielding part surplus causes		○	×	×	×

The warpage change of the fly lens sheet of the band light shield layer of embodiment 22～27 in environment is preserved is few, recovers initial shape basically after environment is preserved.Do not have image fault, do not have light shielding part superfluous and transmissivity that cause reduces, the result is good.

With regard to comparative example 13, the picture appraisal result is good, but the thickness of bonding coat is thicker, may have operational problem in manufacturing process, the cost up of material.

The thickness of adhesive phase is big less than the warpage change of fly lens screen in environment is preserved of the comparative example 14 of 20 μ m, and the variable quantity with respect to initial value after getting back to normal temperature after the preservation is-7mm.If warpage changes to a side, owing to the depth of parallelism with fly lens significantly changes, image fault becomes obviously, even and in comparative example 14, also have same phenomenon.

Even the Young modulus at adhesive phase surpasses 1 * 10 ⁵In the comparative example 15 of Pa, get back to after the preservation and also be-3mm with respect to the variable quantity of initial value behind the normal temperature, confirm image fault.

Be made as in the comparative example 16 of short side direction of screen at flow direction fly lens plate substrate film, because the flow direction that the base film thermal shrinkage is big is made as the minor face of screen, thereby the variable quantity with respect to initial value after getting back to normal temperature after the preservation is-10mm to confirm image fault.

More than be the explanation of carrying out at the various embodiments of the present invention, certainly, the present invention is not limited to these embodiments, can carry out various changes based on technological thought of the present invention.

For example, cited numerical value only is example in above-mentioned each embodiment, can use different numerical value as required.

In addition, be applicable to the not special restriction of optical system of the present invention, go for for example rear projection type televisions machine screen, the rear projection type televisions machine that uses the transmission-type liquid crystal element, the rear projection type televisions machine of use DLP element, the rear projection type televisions machine of use reflective LCD element (LCOS), when the present invention being used for these devices, has the effect that can obtain the preferable image contrast.

In addition, the length breadth ratio of lenticular spacing (ratio of X, Y) is not limited to above-mentioned embodiment, can suitably select the length breadth ratio of lenticular spacing according to the characteristic of the fly lens sheet of desirable band light shield layer and rear projection screen etc.

In addition, in the respective embodiments described above, though to make copy mold from master mold, the situation of using this copy mold to make the fly lens sheet is illustrated as example,, also can directly make the fly lens sheet from master mold.

In addition, in the respective embodiments described above, though be that example is illustrated with the situation of the fly lens sheet of making quadrilateral, X-shaped, linear and their deformed shape, the present invention is not limited to these examples.For example, the shape to the mask that uses separately in the processing of x method of principal axes line (laterally), y direction of principal axis (vertically) is carried out appropriate change, illuminated object can be processed into shape arbitrarily.

In addition, in the respective embodiments described above, though being suitable for situation of the present invention with the fly lens sheet of lens with quadrilateral, X-shaped, linear and their deformed shape is that example is illustrated, but, the shape of lens is not limited to these examples, and is also suitable for the fly lens sheet of the band light shield layer that for example has polygon lens such as triangle, pentagon, hexagon or octagon.In addition, in the operation of the master mold of making the fly lens sheet, when horizontal and vertical processing machined object, can process shape arbitrarily by the shape that changes mask according to all directions.

In addition, in above-mentioned each embodiment, though the suitable situation of the present invention of rear-projection display device of separating with rear projection screen at projector is illustrated, but the rear-projection display device that also can comprise the integration of projector and screen in the box-shaped cabinet is suitable for the present invention.

Claims (25)

1. the fly lens sheet with light shield layer is characterized in that, comprising:

On an interarea, be provided with the fly lens sheet of fly lens;

The light shield layer that on another interarea of above-mentioned fly lens sheet, is provided with;

Photonasty bonding coat with the bonding/non-bonding patterns that between above-mentioned fly lens sheet and above-mentioned light shield layer, forms,

Above-mentioned light shield layer comprises the light shielding part that is formed on the above-mentioned bonding patterns, be formed on the above-mentioned non-bonding patterns and make the transmissive portions of the light transmission that sees through above-mentioned fly lens,

Above-mentioned transmissive portions be arranged on the corresponding position of the formed light collecting part of above-mentioned fly lens on,

Above-mentioned light shielding part contains carbon particle, and the content of this carbon particle is more than the 45wt%, below the 65wt%.

2. the fly lens sheet of band light shield layer as claimed in claim 1 is characterized in that, the quadrilateral that is shaped as quadrilateral or distortion of above-mentioned transmissive portions.

3. the fly lens sheet of band light shield layer as claimed in claim 1 is characterized in that, the X-shaped that is shaped as X-shaped or distortion of above-mentioned transmissive portions.

4. the fly lens sheet of band light shield layer as claimed in claim 1 is characterized in that, the linear that is shaped as straight line or distortion of above-mentioned transmissive portions.

5. the fly lens sheet of band light shield layer as claimed in claim 1 is characterized in that above-mentioned fly lens has aspherical shape.

6. the fly lens sheet of band light shield layer as claimed in claim 1 is characterized in that, the shared area of above-mentioned light shielding part is more than 70% of above-mentioned light shield layer entire area.

7. the fly lens sheet of band light shield layer as claimed in claim 1 is characterized in that, is formed with recess on the surface of the above-mentioned light shield layer side of above-mentioned non-bonding patterns.

8. the fly lens sheet of band light shield layer as claimed in claim 7 is characterized in that, above-mentioned concave depth is more than the 0.05 μ m.

9. the fly lens sheet of band light shield layer as claimed in claim 1 is characterized in that, the thickness of above-mentioned light shield layer is more than the 0.5 μ m, below the 2.0 μ m.

10. the fly lens sheet of band light shield layer as claimed in claim 1 is characterized in that, the transmissivity of above-mentioned light shielding part is below 2.0%.

11. the fly lens sheet of band light shield layer as claimed in claim 1 is characterized in that, the martensite hardness of above-mentioned light shielding part is 30N/mm ²More than, 200N/mm ²Below.

12. the fly lens sheet of band light shield layer as claimed in claim 1 is characterized in that, the spacing of above-mentioned fly lens is more than the 35 μ m, below the 150 μ m.

13. the fly lens sheet of band light shield layer as claimed in claim 1 is characterized in that, above-mentioned fly lens comprises the supporting substrate of the film like of fly lens, the above-mentioned fly lens of supporting, and the thickness of above-mentioned supporting substrate is more than the 35 μ m, below the 105 μ m.

14. the fly lens sheet of band light shield layer as claimed in claim 1 is characterized in that, is more than 65% from total light transmittance of the lens side of the fly lens sheet behind the additional above-mentioned light shield layer.

15. the fly lens sheet of band light shield layer as claimed in claim 1, it is characterized in that, paste plastic plate via transparent adhesive layer in above-mentioned light shield layer, the thickness of above-mentioned adhesive phase is more than the 20 μ m, below the 125 μ m, and the spring rate more than 100 ℃, below 200 ℃ is 1 * 10 ⁴Pa is above, 1 * 10 ⁵Below the Pa.

16. the fly lens sheet of band light shield layer as claimed in claim 15 is characterized in that above-mentioned plastic plate has light diffusion function.

17. a rear projection screen is characterized in that, comprises the fly lens sheet of Fresnel lens and band light shield layer,

The fly lens sheet of above-mentioned band light shield layer comprises: an interarea is provided with the fly lens sheet of fly lens, at the light shield layer that is provided with on another interarea of above-mentioned fly lens sheet, have the photonasty bonding coat of the bonding/non-bonding patterns that between above-mentioned fly lens sheet and above-mentioned light shield layer, forms

Above-mentioned light shield layer has the light shielding part that is formed on the above-mentioned bonding patterns, be formed on the above-mentioned non-bonding patterns and make the transmissive portions of the light transmission that sees through above-mentioned fly lens,

Above-mentioned transmissive portions be arranged on the corresponding position of light collecting part that above-mentioned fly lens forms on,

Above-mentioned light shielding part contains carbon particle, and the content of this carbon particle is more than the 45wt%, below the 65wt%.

18. rear projection screen as claimed in claim 17 is characterized in that, above-mentioned fly lens sheet comprises the supporting substrate of film like of fly lens and this fly lens of supporting, and the flow direction during the system film of above-mentioned supporting substrate is oriented on the long side direction of screen.

19. rear projection screen as claimed in claim 18 is characterized in that, the percent thermal shrinkage of the Width during the system film of above-mentioned supporting substrate is below 0.4%.

20. a projection type image display apparatus is characterized in that, comprises: projector, the rear projection screen that above-mentioned image transmission from the projector projection is shown,

Above-mentioned rear projection screen comprises the fly lens sheet of Fresnel lens and band light shield layer,

The fly lens sheet of above-mentioned band light shield layer be included in an interarea be provided with the fly lens sheet of fly lens, at the light shield layer that is provided with on another interarea of above-mentioned fly lens sheet, have the photonasty bonding coat of the bonding/non-bonding patterns that between above-mentioned fly lens sheet and above-mentioned light shield layer, forms

Above-mentioned light shield layer comprises the light shielding part that is formed on the above-mentioned bonding patterns, be formed on the above-mentioned non-bonding patterns and make transmissive portions by the light transmission of above-mentioned fly lens,

Above-mentioned transmissive portions be arranged on the corresponding position of light collecting part that above-mentioned fly lens forms on,

Above-mentioned light shielding part contains carbon particle, and the content of above-mentioned carbon particle is more than the 45wt%, below the 65wt%.

21. the manufacture method with the fly lens sheet of light shield layer is characterized in that, comprises following operation:

On another interarea of the fly lens sheet that is provided with fly lens on the interarea, form the photonasty bonding coat;

By above-mentioned fly lens above-mentioned photonasty bonding coat irradiation ultraviolet radiation and above-mentioned relatively photonasty bonding coat are formed bonding/non-bonding patterns;

On an interarea of supporting substrate, be provided with contain more than the 45wt%, the black layer of the following carbon particle of 65wt%, constitute the black transfer film, peel off after this transfer film and above-mentioned photonasty bonding coat surface is contacted, with the corresponding position of the formed light collecting part of above-mentioned fly lens on form transmissive portions.

22. the manufacture method of the fly lens sheet of band light shield layer as claimed in claim 21 is characterized in that, has the operation that forms recess in the non-bonding patterns of above-mentioned photonasty bonding coat.

23. the manufacture method of the fly lens sheet of band light shield layer as claimed in claim 21 is characterized in that,

The following operation manufacturing of above-mentioned fly lens sheet process:

The machined object irradiating laser is made the master mold manufacturing process of master mold;

Use above-mentioned master mold or form the eyeglass manufacturing process of fly lens based on the copy mold that this master mold is made,

Above-mentioned master mold manufacturing process comprises the mask picture that forms laser via the opening of mask on above-mentioned machined object, the operation that the aforementioned mask picture is moved to a direction.

24. the manufacture method of the fly lens sheet of band light shield layer as claimed in claim 23 is characterized in that, above-mentioned master mold manufacturing process comprises:

On above-mentioned machined object, form the mask picture of laser, first operation that aforementioned mask is moved to first direction via the opening of mask;

On above-mentioned machined object, form the mask picture of laser, second operation that aforementioned mask is moved to the second direction different with first direction via the opening of mask.

25. the manufacture method of the fly lens sheet of band light shield layer as claimed in claim 23, it is characterized in that, above-mentioned machined object has drum, on the outer peripheral face of this machined object cylindraceous or inner peripheral surface, form the aforementioned mask picture, simultaneously, move axially the aforementioned mask picture along above-mentioned machined object cylindraceous.

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