CN205750264U - Screen - Google Patents

Abstract

This utility model provides a kind of screen, including: flat base material；Reflecting layer, the reflecting layer formed for the metal of configuration on the face by a side of base material, with on the face of the opposite side in base material face in opposite directions, it is formed at multiple hair lines that a direction extends and upwardly extending and shorter relative to the length in multiple hair lines direction multiple concavo-convex in the side orthogonal with direction；And surface diffusion layer, it is arranged in reflecting layer on the side in the face of opposite side, relative to visible light, optical isotropy and transparent, and with the surface of the opposite side in face in opposite directions, reflecting layer on have concavo-convex, reflecting layer has following viewing angle characteristic, when light irradiates white board, the situation that light intensity is 1 in white board is ratio, it is 6～14 as the peak gain of maximum in full visual angle, the visual angle in one direction is that in the position of 20 °～30 °, peak gain halves, and in the position that the visual angle in orthogonal direction is 5 °～15 °, peak gain halves.

Description

Screen

[technical field]

This utility model relates to screen.

[background technology]

The screen that known a kind of image light to coming from projections such as projectors reflects.For the purpose at extension visual angle, Screen comprises scattering diluent (for example, referring to patent documentation 1) sometimes.Additionally, it is known that one is projected to screen by projector etc. The image light of polarisation is to provide a user with the technology of stereo-picture.

[prior art literature]

[patent documentation]

[patent documentation 1] JP 2000-305177 publication

[utility model content]

[problem that utility model is to be solved]

But, in above-mentioned screen, in the case of the stereo-picture that polarisation is projected on screen, because containing expanding in screen Powder or stretched PTFE film, so having polarized light property change and the problem of stereo-picture deterioration of image light.And, stereo-picture is used In screen, there is viewing angle characteristic and be isotropism, easily affected by illumination light and problem that contrast is low.

[solving the means of problem]

In an embodiment of the present utility model, it is provided that a kind of screen, including: flat base material；Reflecting layer, for The reflecting layer formed by the metal of configuration on the face of the side of base material, with on the face of the opposite side in base material face in opposite directions, shape Multiple hair lines that Cheng Yi direction extends and upwardly extending in the side orthogonal with direction and relative to multiple hair lines Shorter multiple concavo-convex of the length in one direction；And surface diffusion layer, is arranged in reflecting layer on the side in the face of opposite side, Relative to visible light, optical isotropy and transparent, and with the surface of the opposite side in face in opposite directions, reflecting layer on have recessed Convex, reflecting layer has following viewing angle characteristic, and when light irradiates white board, the situation that light intensity is 1 in white board is ratio, Being 6～14 as the peak gain of maximum in full visual angle, the visual angle in a direction is peak gain in the position of 20 °～30 ° Halve, and in the position that the visual angle in orthogonal direction is 5 °～15 °, peak gain halves.

In an embodiment of the present utility model, it is provided that a kind of screen, including: flat base material；Reflecting layer, by On the face of the side being arranged in base material, the metal of configuration is made；And surface diffusion layer, it is arranged in reflecting layer with base material in opposite directions Face opposite side face side on, relative to visible light, optical isotropy and transparent, and relative with reflecting layer Having concavo-convex on the surface of the opposite side in face, the arithmetic average roughness Ra on surface is 0.5 μm～0.8 μm.

In an embodiment of the present utility model, it is provided that a kind of screen, including: flat base material；Reflecting layer, for The reflecting layer formed by the metal of configuration on the face of the side of base material, with on the face of the opposite side in base material face in opposite directions, shape Multiple hair lines that Cheng Yi direction extends and upwardly extending in the side orthogonal with direction and relative to multiple hair lines Shorter multiple concavo-convex of the length in one direction；And surface diffusion layer, is arranged in reflecting layer on the side in the face of opposite side, Relative to visible light, optical isotropy and transparent, and with the surface of the opposite side in face in opposite directions, reflecting layer on have recessed Convex, the arithmetic average roughness Ra on surface is 0.5 μm～0.8 μm, and reflecting layer has following viewing angle characteristic, irradiates white board at light Time white board in the situation that light intensity is 1 be ratio, be 6～14 as the peak gain of maximum in full visual angle, one The visual angle in direction is that in the position of 20 °～30 °, peak gain halves, and the visual angle in orthogonal direction is 5 °～the position of 15 ° Middle peak gain halves.

Above-mentioned utility model content do not list of the present utility model all may feature.The sub-portfolio of these feature groups Fall within this utility model.

[accompanying drawing explanation]

Fig. 1 is the overall structure figure of projecting apparatus system 10.

Fig. 2 is exploded perspective view and the magnified partial view of screen 14.

Fig. 3 is the sectional view of screen 14.

Fig. 4 is the figure of each step in the manufacture method of account for screen 14.

Fig. 5 is the figure of each step in the manufacture method of account for screen 14.

Fig. 6 is the figure of each step in the manufacture method of account for screen 14.

Fig. 7 is the sectional view of the screen 214 with the surface diffusion layer 228 being modified.

Fig. 8 is the synoptic diagram of explanation crosstalk ratio determination experiment.

Fig. 9 is the summary description figure of gain determination experiment.

Figure 10 is the sectional view of the screen 914 of explanation comparative example 1.

Figure 11 is the measurement result figure of crosstalk ratio and gain.

The explanatory diagram at the horizontal direction visual angle of the reflection light in the screen 14 that Figure 12 is seen from above.

Figure 13 is the explanatory diagram at the above-below direction visual angle of the reflection light the screen 14 in terms of side.

Figure 14 is the explanatory diagram at the above-below direction visual angle of the exterior light of the reflection the screen 14 in terms of side.

Figure 15 is the sectional view of the screen 514 of the experiment sample of embossing processing.

Figure 16 is film and the test experiments result of relation of crosstalk ratio of boss surface processing.

[detailed description of the invention]

Hereinafter, by the embodiment of utility model, this utility model is illustrated.Following embodiment does not limit Determine this utility model right.In addition, the combination of feature described in embodiment is not necessarily all the solution of utility model Necessary to means.

Fig. 1 is the overall structure figure of projecting apparatus system 10.Using in Fig. 1 shown in arrow up and down before and after as projecting apparatus system 10 Fore-and-aft direction up and down.It addition, this upper and lower fore-and-aft direction is the projecting apparatus system 10 front and back up and down under usual use state To.

As it is shown in figure 1, projecting apparatus system 10 includes the screen 14 of projector 12 and reflection-type.Formation is videoed by projector 12 Image light PL be projeced on screen 14.The right eye being made up of the polarisation that polarized light property is different is used and the shadow of left eye by screen 14 As light PL forwards reflects.The combination of the polarized light property of the image light PL of right eye use and left eye, for example, with above-below direction be The combination of the linear polarization of polarization direction and the linear polarization with horizontal direction as polarization direction or with dextrorotation as polarization direction Rotatory polarization with the combination of the left-handed rotatory polarization as polarization direction.User is by means of including that the right eye with different polaroid is used Image light PL observed by the polaroid glasses 16 of eyeglass and left eye lens.Accordingly, user can see right eye image light with right eye PL, and see left eye image light PL with left eye.User can watch the stereo imagery mapped out on screen 14.

Fig. 2 is exploded perspective view and the magnified partial view of screen 14.Fig. 3 is the sectional view of screen 14.Such as Fig. 2 and Fig. 3 Shown in, screen 14 has: base material 22, adhesive layer 24, reflecting layer 26 and surface diffusion layer 28.Magnified partial view illustrates in Fig. 2 Magnification region A, from the enlarged drawing above seeing the part being reflecting layer 26.

Base material 22 is made up of the resin of PET (polyethylene terephthalate).Base material 22 can be by gathering in addition to PET Other resins such as carbonic ester, polyethylene, poly-naphthalenedicarboxylic acid, polrvinyl chloride are constituted.Base material 22 is formed as rectangular in front view The tabular of shape.One embodiment of the shape of base material 22 can be the rectangle of 80 inch dimension.The screen 14 of this size can make With the base material being laminated with multiple base material 22.One embodiment of the thickness of base material 22 can be 100 μm, when stacking is multiple, stacking One embodiment of the thickness of base material 22 can be by combined with 75 μm for 100 μm.

Reflecting layer 26 is attached on base material 22 by adhesive layer 24.Adhesive layer 24 spreads all over setting before the entirety of base material 22.Attached Layer 24 to be made up of polyurethanes sticker.Adhesive layer 24 can also suitably be changed, as long as reflecting layer 26 can be adhered to Material.The thickness of adhesive layer 24 is 5～30 μm, from the viewpoint of flexible, and preferably 5～10 μm, present embodiment In be 5 μm.

Reflecting layer 26 is dispersed throughout the whole former configuration of base material 22 by means of adhesive layer 24.Reflecting layer 26 is made up of aluminum.Make Material for reflecting layer 26 can use soft aluminium foil.Reflecting layer 26 can also be made up of other metals, as long as can reflect The material of light.The thickness in reflecting layer 26 is 5～20 μm, from the viewpoint of flexible, and preferably 5～10 μm, this enforcement Mode is 7 μm.

As shown in magnification region A, the surface in reflecting layer 26, before the face connected with surface diffusion layer 28, i.e. reflecting layer 26 Whole, form multiple hair line 32 and multiple concavo-convex 34.Multiple hair lines 32 are horizontally extending, multiple concavo-convex 34 with send out Above-below direction extension is carried out on the orthogonal direction of horizontal direction that line 32 extends.Additionally, magnification region being merely cited for property of A is said Bright, multiple hair lines 32 and multiple shape etc. of concavo-convex 34 are not limited to diagram.

Each of multiple hair lines 32 is by the most collinear continuously coupled hair line of several mm to a few μm length.In the vertical direction The spacing of adjacent multiple hair lines 32 is that 6 μm are to 10 μm.Multiple rough structure of concavo-convex 34 be multiple protuberances of extending up and down and Multiple recesses are alternately distributed towards horizontal direction.The thickness in the reflecting layer in the crest line that the multiple protuberances extended by above-below direction connect Degree changes brokenly.Similarly, the thickness in the reflecting layer in the valley line connected by multiple recesses that above-below direction extends is not advised Then change.Therefore, compared with multiple hair lines 32, multiple concavo-convex 34 are generally irregularly arranged.By multiple sections of concavo-convex 34 Section profile after profile standardization is above-below direction gradual change and the precipitous shape of horizontal direction.It is, with along upper and lower To the valley line of crest line and the recess of the protuberance extended each and the rate of change of reflector thickness that changes is compared, horizontal direction is handed over Rate of change for the thickness in the reflecting layer on the protuberance of distribution and a direction of recess is bigger.And, many in multiple concavo-convex 34 The length of the horizontal direction being shorter in length than multiple hair line 32 of each above-below direction of individual protuberance and multiple recess.Reflecting layer 26 Main by multiple concavo-convex 34, extension is at the horizontal direction visual angle of the image light PL above reflected, and makes above reflecting The above-below direction visual angle of exterior light narrows.

Formed above-below direction multiple concavo-convex 34 so that reflecting layer 26 have peak gain be 6～14, horizontal direction visual angle It is regarding of halving of the position peak gain that position peak gain halves and above-below direction visual angle is 5 °～15 ° of 20 °～30 ° Angle characteristic.Peak gain mentioned here refers to: light be irradiated to the situation that intensity is 1 of light during white board in white board for than Example, the maximum in full visual angle.

Surface diffusion layer 28 does not at least have many refractive indexs in the visible region as image light PL, for optics respectively to same Property and transparent.Accordingly, surface diffusion layer 28 make the image light PL reflected by reflecting layer 26 by and do not change its polarized light property.Table Face diffusion layer 28 in reflecting layer 26 with base material 22 to the face of the opposite side in face, i.e. whole above the spreading all in reflecting layer 26 join Put.The resin of main composition surface diffusion layer 28 can be suitable for polyurethane based resin.Surface diffusion layer 28 plays the merit of color emission layer Energy.Surface diffusion layer 28 comprises coloring agent, and total light transmittance is 20%～50%.The coloring agent comprised in surface diffusion layer 28 Black pigment or black dyes by azo system are made.Coloring agent is the most solvable on the resin layer, by suppressing into For hinder polarisation will because of scattering-in black dyes formed.Accordingly, surface diffusion layer 28 absorbs the phase place because of multipath reflection The polarisation of entanglement, reduces the deviation of polarized light property.

The thickness of surface diffusion layer 28 is 10 μm.Before surface diffusion layer 28, i.e. on the surface of surface diffusion layer 28, shape Concavo-convex the 36 of origin cause of formation embossing processing.As a result, the surface of surface diffusion layer 28 is: arithmetic average roughness Ra is 0.5 μm～0.8 μ M, 10 mean roughness Rz are 2.5 μm～3.8 μm.Preferably, arithmetic average roughness Ra is 0.65 μm, 10 average roughness Degree Rz is 2.93 μm.Additionally, arithmetic average roughness Ra is in the range of the predetermined datum length of roughness curve, from this model Enclose the value asked for by integration method.10 mean roughness Rz are values below, in the range of predetermined datum length, and computed range From the height of the average line of the roughness curve of the high peak dot of summit o'clock to the 5th and and distance from minimum valley point to The sum of the degree of depth of the average line of the roughness curve of the 5th low valley point, by this height and with the degree of depth and divided by 5 values obtained. By this concavo-convex 36, extend image light PL exit direction, extend visual angle.

One embodiment of the manufacture method of screen 14 is illustrated.Fig. 4～Fig. 6 is in the manufacture method of account for screen 14 The figure of each step.

First, in the preparatory stage of the aluminium foil as reflecting layer 26, roll thin aluminium sheet by stack.Now, aluminum Rolled by stack on the two sides of plate, form multiple hair line 32 in the flowing direction.Then, at 2 aluminium sheet weights by calendering Calendering by stack is repeated, so that aluminium sheet is interim thinning until it becomes the thickness of aluminium foil under folded state.Court To above-mentioned flow direction, peel off two the overlapping aluminium foils obtained accordingly.Now, being formed respectively on face at two aluminium foils Multiple concavo-convex the 34 of shape complementarity.

Then, as shown in Figure 4, in the setting steps of reflecting layer, by roll coater being made up of PET at 100 μ m thick Flat base material 22 on be coated with polyurethanes sticker so that the thickness of dried adhesive layer 24 is 5 μm.Hereafter, exist Load aluminium foil in the one side of adhesive layer 24 and become reflecting layer 26.Hereafter, by making adhesive layer 24 harden, will by means of adhesive layer 24 Reflecting layer 26 attachment is arranged on base material 22.

Then, as it is shown in figure 5, in surface diffusion layer 28 forming step, by foundry goods blending had polyurethane based resin and The resin composition of black dyes is coated before reflecting layer 26 so that it is dried thickness is 10 μm.The resin being coated with The polyalcohols host that one embodiment is 100 parts of synthetic, the isocyanate hardener of 28 parts, the retarder thinner of 100 parts And the mixture of appropriate black dyes.Black dyes can correspond to designed gain and carries out suitable proportioning.Hereafter, tree is made Fat synthetic is dried, and in reflecting layer 26 as with base material 22 to being previously formed of the opposite flank in face relative to visible ray is Optical isotropy and transparent surface diffusion layer 28.Furthermore, it is possible to by urethane system tree will be comprised before reflecting layer 26 The membranaceous sheet material lamination of fat and black dyes, forms surface diffusion layer 28.In this case, can be surface diffusion layer 28 He Formed for membranaceous surface diffusion layer 28 is attached to the transparent adhesive layer before reflecting layer 26 between reflecting layer 26.And And, replace above-mentioned urethane system resin, it is possible to use urethane acrylate resin, acrylic resin acrylate etc. Ultraviolet hardening resin.

Hereinafter, as shown in Figure 6, the graining film 40 being made up of OPP (biaxial stretchability polypropylene) film of 20 μ m-thick is fitted In surface diffusion layer 28 whole above on.The binding face of graining film 40 is formed and is formed irregular through embossing processing Boss surface 42.In this case, the aggregate thickness in base material 22, adhesive layer 24 and reflecting layer 26 is 112 μm, surface diffusion layer 28 Thickness is 10 μm, and the thickness of graining film 40 is 20 μm.Hereafter, after surface diffusion layer 28 being carried out aging reason, graining film 40 is shelled From.Accordingly, the surface of the concavo-convex exposed surface being transferred to as surface diffusion layer 28 of the boss surface 42 of graining film 40 is formed Concavo-convex 36.Thus complete screen 14 as shown in Figure 3.Additionally, in addition to the printing transferring method of above-mentioned OPP film, it is also possible to pass through The methods such as sandblasting, strong basicity chemical etching form concavo-convex the 36 of the surface of surface diffusion layer 28.

The functions and effects of above-mentioned screen 14 are illustrated.The shadow with two polarization directions from projector 12 output When arriving screen 14 as light PL, incident from surface diffusion layer 28.Image light PL arrives reflecting layer through after surface diffusion layer 28 26.The image light PL arriving reflecting layer 26 is reflected, and advances toward front.Herein, owing at least being formed before reflecting layer 26 Multiple concavo-convex the 34 of above-below direction extension, therefore, image light PL is reflected when direct of travel extends in the horizontal direction. Hereafter, image light PL enters surface diffusion layer 28.

Think herein in image light PL, be scattered a part of light of reflection in diffusion into the surface by hair line 32 and concavo-convex 34 The inside of layer 28 occurs multipath reflection to become veiling glare, and this veiling glare is absorbed by black dyes.On the other hand, it is believed that at image In light PL, rationally reflected by hair line 32 and concavo-convex 34 and make polarisation not occur the image light PL of confusion seldom in diffusion into the surface The inside of layer 28 is absorbed by black dyes, and major part passes through and penetrates.

Further, it is concavo-convex that the image light PL exported before surface diffusion layer 28 is formed by being processed by embossing 36, extend along direct of travel when maintaining polarized light property.Accordingly, user can be in the broader region in screen 14 front See that polarized light property obtains the image light PL maintained, therefore, it is possible to reduce crosstalk ratio.It is additionally, since surface diffusion layer 28 to define Concavo-convex 36, therefore, it is possible to reduce the change in gain produced along with horizontal direction visual angle change.That is increasing can be reduced Benefit is relative to the change at horizontal direction visual angle.So that screen 14 can either reduce in broader region in the horizontal direction relative to The brightness flop at horizontal direction visual angle, can provide the user again the stereo-picture of high image quality.And, screen 14 can extend water Square to visual angle, and the speck such as focus, flash-point can be suppressed.

As above, the screen 14 of present embodiment includes according to above-mentioned viewing angle characteristic to be previously formed at least above-below direction many The individual reflecting layer of concavo-convex 34 26 and in order to make surface arithmetic average roughness Ra be 0.5 μm～0.8 μm is had and added by embossing The surface diffusion layer 28 of concavo-convex the 36 of work formation.Accordingly, it is possible not only to make the level of the image light PL reflected by reflecting layer 26 Visual angle, direction extends, and makes the visual angle of the above-below direction of exterior light narrow, it is also possible to remaining inclined by surface diffusion layer 28 Under the state of light characteristic, by making image light spread, reduce the crosstalk ratio of the broad area in screen 14 front, reduce further Change in gain relative to horizontal direction visual angle.

Fig. 7 is the sectional view of the screen 214 with the surface diffusion layer 228 being modified.Screen 14 has: base material 22, attached Layer 24, reflecting layer 26 and surface diffusion layer 228.

Surface diffusion layer 228 does not have many refractive indexs, for optical isotropy.Surface diffusion layer 228 is by transparent resin Constitute.Surface diffusion layer 228 be arranged to spread all over reflecting layer 26 whole before.Surface diffusion layer 228 is by polyurethane based resin Constitute.Surface diffusion layer 228 does not comprise coloring agent, and near colorless, total light transmittance is more than 80%.Surface diffusion layer 228 thickness with about 10 μm.Processed by embossing and be previously formed concavo-convex 236 the whole of surface diffusion layer 228.

Hereinafter, the experiment carried out proving above-mentioned embodiment can reduce the effect of crosstalk ratio and the equalization of gain Illustrate.Fig. 8 is the synoptic diagram of explanation crosstalk ratio determination experiment.As shown in Figure 8, this experiment from projector 12 to screen 414 Projection reflection, is measured the brightness on screen 414 by luminance meter 70.The concrete shape of each parts of following description, configuration etc..

Screen 414 is horizontal 1040mm, the oblong-shaped of longitudinal 770mm.Projector 12 uses the DLP (note of NEC Corporation Volume trade mark) projector.PC inputs the signal making whole display white image in projector 12.Luminance meter 70 uses The BM-7 of TOPCON company.The brightness measuring angle of luminance meter 70 is set to 1.0 °.

Horizontal direction distance L1 between projector 12 and screen 414 is 2000mm.Between luminance meter 70 and screen 414 Horizontal direction distance L2 is 2500mm.Above-below direction distance, i.e. height H between projector 12 and screen 414 are 620mm. The sensitive surface center of luminance meter 70 and the center of screen 414 are identical height.

Polarizer 72 it is configured with between projector 12 and screen 414.Polarizer 72 have above-below direction through axle.? Polarizer 74 it is configured with between luminance meter 70 and screen 414.It is configured with through direction of principal axis identical with Polarizer 72 at Polarizer 74 Parallel-nicol prism, and under the state through one of the axle Nicol crossed vertical with Polarizer 72, by brightness The center brightness of meter 70 measurement screen 414.Then crosstalk ratio is calculated by such as following formula (1).

The white picture brightness (1) of the white picture brightness/parallel-nicol prism of crosstalk ratio=Nicol crossed

Further, luminance meter 70 is made to rotate in horizontal plane around the center of screen 414, while measuring brightness, from And calculate the crosstalk ratio in each visual angle.

Fig. 9 is the summary description figure of gain determination experiment.As it is shown in figure 9, use light source 76 and goniophotometer 78 to carry out Gain measures.

The light coming from the plane wave of fixing light source 76 is irradiated on screen 414, is measured instead by goniophotometer 78 The light intensity penetrated.Goniophotometer (goniophotometer) 78 uses the GP-200 of color institute company in village.Angle measurement Photometer 78, while rotating in horizontal plane around the center of screen 414, measures light intensity.Specifically, by the method for screen 414 Line direction, as 0 °, measures the light intensity rotating to 70 °.It addition, as the benchmark of gain, the light that will measure with standard white plate Intensity is as " 1 ".

As crosstalk ratio and the test sample of gain, make embodiment 1, embodiment 2 and the comparative example 1 compared.Real Execute example 1 and there is the stepped construction identical with the screen 14 with the surface diffusion layer 28 playing above-mentioned color emission layer function.Embodiment 1 In base material 22, adhesive layer 24, reflecting layer 26, the respective thickness of surface diffusion layer 28 be 100 μm, 5 μm, 7 μm, 10 μm.Implement Example 2 has the stepped construction identical with the screen 214 with the surface diffusion layer 228 being made up of above-mentioned transparent resin.Embodiment 2 In base material 22, adhesive layer 24, reflecting layer 26, the respective thickness of surface diffusion layer 228 be 100 μm, 5 μm, 7 μm, 10 μm.

Figure 10 is the sectional view of the screen 914 of explanation comparative example 1.As shown in Figure 10, the screen 914 of comparative example 1 has: base Material 922 and reflecting layer 926.Base material 922 has the thickness of 1～2mm.Base material 922 has resin bed 934 and cross part 936.Resin Layer 934 is made up of PVC (polrvinyl chloride).Cross part 936 is arranged at after resin bed 934.Cross part 936 is at orthogonal two Polyester fiber has been enrolled in direction.Reflecting layer 926 is made up of the resin of silver application.Reflecting layer 926 is containing Al filler 938.Reflection Layer 926 has the thickness of 3 μm.

Figure 11 is the measurement result figure of crosstalk ratio and gain.As shown in figure 11, the crosstalk ratio of embodiment 1 and embodiment 2 is little Crosstalk ratio in comparative example 1.Especially it will be seen that along with the change at horizontal direction visual angle is big, embodiment 1 and embodiment 2 with than The crosstalk rate variance of relatively example 1 significantly increases.Find when embodiment 1 and embodiment 2 being compared in terms of crosstalk ratio, there is performance Embodiment 1 as the surface diffusion layer 28 of color emission layer function is less than the crosstalk ratio of embodiment 2.

And, embodiment 1, embodiment 2 and comparative example 1 carry out gain and compare, except less one in horizontal direction visual angle Outside subregion, compared with comparative example 1, the gain of embodiment 1 and embodiment 2 is bigger.Further, compared with comparative example 1, embodiment 1 and the change in gain relative to horizontal direction visual angle change of embodiment 2 less.In other words, compared with comparative example 1, embodiment 1 Less with the brightness flop of the image caused because of user 1 position of embodiment 2.

The explanatory diagram at the horizontal direction visual angle of the reflection light in the screen 14 that Figure 12 is seen from above.Figure 13 is in terms of side Screen 14 in the explanatory diagram at above-below direction visual angle of reflection light.In Figure 12 and Figure 13, illustrate to be arranged in projector 12 Each visual angle of the reflection light in screen 14 in the case of the front of screen 14.

In Figure 12 and Figure 13, solid arrow is shown through the image that projector 12 projects and screen 14 reflects and spreads Light.Equally, dotted arrow be shown through projector 12 project and do not formed on reflecting layer hair line and concavo-convex screen reflection and expand The image light dissipated.The reflecting layer of screen is formed by the silver-colored application resin bed of the filler containing aluminum, does not has in the viewing angle characteristic in reflecting layer There is anisotropy.

As shown in Figure 12 and Figure 13, ground, the direction such as above-mentioned screen reflection light, horizontal direction visual angle and above-below direction visual angle do not have Change.Correspondingly, according to screen 14, reflecting layer 26 has the position at broader 20 °～30 ° horizontal direction visual angles compared with screen The place's of putting peak gain halves and the position peak gain at 5 °～15 ° above-below direction visual angles narrower compared with elecscreen halves regards Angle characteristic.It is, compared with screen, screen makes the horizontal direction visual angle of reflection light broaden, but makes above-below direction visual angle narrow.

Figure 14 is the explanatory diagram at the above-below direction visual angle of the exterior light of the reflection the screen 14 in terms of side.At Figure 14 In, solid arrow illustrates from the fixing exterior light that light source 18 sends and screen 14 reflects and spreads.Equally, dotted arrow illustrates The exterior light sending and not formed reflecting layer hair line and concavo-convex screen reflection from fixing light source 18 and spread.And, use The range of observation at family 1 illustrates with R.

As shown in figure 14, according to screen, the range of observation R of the incidence of external light of reflection to user, from projector projects The contrast step-down of image.To this, according to screen 14, exterior light incident in the range of observation R of user 1 in screen is directed Outside the range of observation R of user 1.And, compared with projector light, exterior light incides on screen 14 by big angle, because of This passes through light absorbing above-mentioned surface diffusion layer 28, and light path is elongated.As a result, according to Beer-Lambert Law, advance with short light path Projector light is compared, the exterior light decay that long light-path is advanced.Therefore, reflect exterior light by screen 14, even if entering user's 1 In the case of range of observation, the image that exterior light produces is lowered, it is possible to the reduction of suppression contrast.Such as, though In the case of bright local use screen 14, it is also possible to the visual reduction of suppression 3D image.

Hereinafter, just by by OPP film formed embossing processing reduce crosstalk ratio effect proof experiment illustrate.Figure The sectional view that 15 is the screen 514 of the experiment sample of embossing processing.As shown in figure 15, screen 514 includes: base material 22, attachment Layer 24, reflecting layer 26, antirust coat 527 and surface diffusion layer 528.Surface diffusion layer 528 is constituted as by ultraviolet hardening resin Surface layer and play a role.Surface diffusion layer 528 be previously formed concavo-convex 536.In this experiment, by using by OPP The embossing processing of the graining film of arbitrary composition of film, PET sand pad, PET kneading pad forms concavo-convex 536, surveys crosstalk ratio Examination.PET sand pad uses and is split into industrial group's product.PET kneading pad uses the X44 of Toray.

Figure 16 is film and the test experiments result of relation of crosstalk ratio of boss surface processing.In crosstalk ratio, 0 ° is screen 514 Just before (i.e. front), 60 ° is to rotate the direction of 60 ° in a horizontal plane from the center of screen 514.

As shown in figure 16, compared with PET sand pad, PET kneading pad, the string of the screen 514 of concavo-convex 536 is formed by OPP film Rate of disturbing great advantage on 0 ° and 60 ° of two direction.

Shape in structure described in the respective embodiments described above, numerical value, material, configuration can suitably be changed.Above-mentioned many In individual embodiment, the multiple concavo-convex general structure explanation being previously formed in reflecting layer is for vertically extending multiple convex Portion and multiple recess are alternately distributed towards horizontal direction, and the explanation of its section profile is precipitous for above-below direction gradual change and horizontal direction Shape.However, it is not necessary to reflecting layer whole before, multiple concavo-convex general structures and section profile all have this structure/ Shape.Such as, the major part before reflecting layer, can have this configuration/shape at least more than half region.Also That is, in the preparatory stage in reflecting layer, formed when being peeled off by 2 aluminium foils is multiple concavo-convex: one part is different from above-mentioned General structure and section profile, its major part has above-mentioned general structure and section profile.

Above, use embodiment of the present utility model to be illustrated, but technical scope of the present utility model is not limited to Scope described in above-mentioned embodiment.To those skilled in the art, it is possible to described embodiment is applied multiple change More or improvement be apparent from.According to the record of claims of the present utility model, through such change or change Scheme after good is also contained in protection domain of the present utility model.

In device shown in this utility model claims, description and accompanying drawing, system, program and method The execution sequence that respectively processes such as action, step and stage be not explicitly shown as " before ", " in the past ", additionally, should note Meaning, in the case of not utilizing the output of process above, it is possible to realize in any order in the process below.Relevant basis Motion flow in the requirement of utility model right, specification and drawings, for convenience of description, employs " first in explanation First ", the printed words such as " secondly ", even if so not meaning that yet and must implement in this order.

[symbol description]

1 user

10 projecting apparatus systems

12 projectors

14 screens

16 polaroid glasses

18 light sources

22 base materials

24 adhesive layers

26 reflecting layer

28 surface diffusion layers

32 hair lines

34 is concavo-convex

40 graining films

42 boss surfaces

70 luminance meters

72 Polarizers

74 Polarizers

76 light sources

78 goniophotometers

214 screens

228 surface diffusion layers

236 is concavo-convex

414 screens

514 screens

527 antirust coats

528 surface diffusion layers

536 is concavo-convex

914 screens

922 base materials

926 reflecting layer

934 resin beds

936 cross parts

938 fillers

Claims (11)

1. a screen, including:

Flat base material；

Reflecting layer, the reflecting layer formed for the metal of configuration on the face of the side by described base material, with described base material in opposite directions Face opposite side face on, be formed at multiple hair lines that direction extends and in the direction orthogonal with one direction Upper extension and that the length in one direction relative to the plurality of hair line is shorter is multiple concavo-convex；And

Surface diffusion layer, is arranged in described in described reflecting layer on the side in the face of opposite side, relative to visible light, optics respectively to The same sex and transparent, and with the surface of the opposite side in face in opposite directions, described reflecting layer on have concavo-convex,

Described reflecting layer has following viewing angle characteristic, the situation that light intensity is 1 in described white board when light irradiates white board For ratio, being 6～14 as the peak gain of maximum in full visual angle, the visual angle in one direction is 20 °～the position of 30 ° Described in putting, peak gain halves, and described in the position that the visual angle in described orthogonal direction is 5 °～15 °, peak gain subtracts Half.

Screen the most according to claim 1, wherein, the plurality of concavo-convex section profile is above-below direction gradual change and level The shape that direction is precipitous.

Screen the most according to claim 1, wherein, described surface diffusion layer is to be included in shape in transparent resin by coloring agent Become, and full light light transmittance is 20%～50%.

Screen the most according to claim 1,10 mean roughness Rz on the described surface of described surface diffusion layer are 2.5 μm～3.8 μm.

5. a screen, including:

Flat base material；

Reflecting layer, is made up of the metal of configuration on the face of the side being arranged in described base material；And

Surface diffusion layer, on the side in the face being arranged in described reflecting layer opposite side with described base material face in opposite directions, relatively In visible light, optical isotropy and transparent, and have recessed on the surface of the opposite side in the face relative with described reflecting layer Convex, the arithmetic average roughness Ra on described surface is 0.5 μm～0.8 μm.

Screen the most according to claim 5, wherein, described surface diffusion layer is to be included in shape in transparent resin by coloring agent Become, and full light light transmittance is 20%～50%.

Screen the most according to claim 5,10 mean roughness Rz on the described surface of described surface diffusion layer are 2.5 μm～3.8 μm.

8. a screen, including:

Flat base material；

Reflecting layer, the reflecting layer formed for the metal of configuration on the face of the side by described base material, with described base material in opposite directions Face opposite side face on, be formed at multiple hair lines that direction extends and in the direction orthogonal with one direction Upper extension and that the length in one direction relative to the plurality of hair line is shorter is multiple concavo-convex；And

Surface diffusion layer, is arranged in described in described reflecting layer on the side in the face of opposite side, relative to visible light, optics respectively to The same sex and transparent, and with the surface of the opposite side in face in opposite directions, described reflecting layer on have concavo-convex, the arithmetic on described surface Average roughness Ra is 0.5 μm～0.8 μm,

Described reflecting layer has following viewing angle characteristic, the situation that light intensity is 1 in described white board when light irradiates white board For ratio, being 6～14 as the peak gain of maximum in full visual angle, the visual angle in one direction is 20 °～the position of 30 ° Described in putting, peak gain halves, and described in the position that the visual angle in described orthogonal direction is 5 °～15 °, peak gain subtracts Half.

Screen the most according to claim 8, wherein, the plurality of concavo-convex section profile is above-below direction gradual change and level The shape that direction is precipitous.

Screen the most according to claim 8, wherein, described surface diffusion layer is to be included in transparent resin by coloring agent Formed, and full light light transmittance is 20%～50%.

11. screens according to claim 8,10 mean roughness Rz on the described surface of described surface diffusion layer are 2.5 μm～3.8 μm.