CN105319613A - Optical film and display device with contact control plate - Google Patents

Abstract

The invention provides an optical film which can inhibit the reflection, the newton's ring, inhibit glare, and has total low haze and internal haze and a display device which can fully inhibit the watermark and generation of the glare. The optical film is provided with concave-convex-shaped optical layers which are stacked on the light transmission base material. The optical film is characterized in that the total haze value is above 0% and below 5%; the internal haze value is above 0% and below 5%; the definition of the transmission image using the 0.125mm width optical comb to measure is C(0.125). When the definition of the transmission image using the 0.25 mm width optical comb measurement is set as C(0.25), the following formula (1) and the formula (2) can be satisfied C(0.25)-C (0.25)>=2% (1) C (0.125) <= 64%.

Description

The display device of blooming and band contact panel

Technical field

The present invention relates to the display device of blooming and band contact panel.

Background technology

On the picture display face of the image display devices such as liquid crystal display (LCD), CRT display (CRT), plasma scope (PDP), electroluminescent display (ELD), Field Emission Display (FED), usually, in order to suppress shining upon of the background of observer and observer etc., be provided with at the irregular antiglare film of surperficial tool, the antireflection film in outmost surface with anti-reflection layer.

Antiglare film is the film shone upon making extraneous light in the male and fomale(M&F) generation scattering of antiglare layer thus suppress the background of observer and observer etc.Antiglare film mainly possesses Mght-transmitting base material and is arranged on the antiglare layer with male and fomale(M&F) on Mght-transmitting base material.

Antiglare layer is usually containing resin glue with to be present in resin glue and for the formation of the particulate of male and fomale(M&F).

But when such antiglare film is configured at the surface of image display device, the male and fomale(M&F) of antiglare layer makes image light scattering, likely produces so-called dazzle.For such problem, propose the internal haze of raising antiglare film to suppress the scheme (such as, see patent documentation 1) of dazzle.

In recent years, have developed the meticulous image display device of superelevation that the Horizontal number of pixels being called as 4K2K (Horizontal number of pixels 3840 × Vertical number of pixels 2160) is more than 3000.

In the image display device that such superelevation is meticulous, also in the same manner as above-mentioned image display device, antiglare film is set at picture display face, but for the meticulous image display device of superelevation, requires higher than brightness in the past, light transmission.

At this, if improve total mist degree, the internal haze of antiglare film, then the reduction of brightness, transmittance can be caused, therefore, in the image display device that superelevation is meticulous, as described above for suppressing the means of dazzle, the means that the internal haze of raising antiglare film is such can not be adopted.In addition, if improve the internal haze of antiglare film, then image light diffusion in antiglare film, a part of image light likely becomes parasitic light, result, and dark contrast reduces, and image also may be fuzzy.Therefore, at present, as the film be assembled in the meticulous image display device of superelevation, expect to suppress dazzle and total mist degree and the low film of internal haze.

In addition, in recent years, the small type mobile devices that smart mobile phone, tablet terminal etc. are equipped with contact panel is popularized fast, but in such small type mobile devices, because the superelevation showing image becomes more meticulous, the problem of the dazzle of image display device also becomes more remarkable, on the other hand, requires higher than brightness in the past, light transmission.

In the past, the known display device being configured with the band contact panel of contact panel on the display panels such as liquid crystal display, in small type mobile devices as above, the also display device being used in band contact panel image display device being configured with contact panel more.In the display device of such band contact panel, can by directly inputting information with touching picture display faces such as fingers.

When being fixed on display panel by contact panel, display panel and contact panel mostly reserve interval and configure.That is, display panel and contact panel configure (such as, see patent documentation 2) across air layer (air gap) mostly.

For the picture display face of display device of band contact panel, it is not only the degree waiting touching with finger in nature, and sometimes also can with powerful pressings such as fingers.When picture display face is pressed by brute force, contact panel deforms, therefore, distance between contact panel and display panel narrows (lower thickness of air layer), produced Newton ring by the light that reflects with being interfered by the light reflected on the surface of the contact panel side of display panel on the surface of the display panel side of contact panel, there is the problem that the visuality of picture is reduced.

In addition, in recent years, just in slimming and the large area of the display device of push belt contact panel.Along with the progress of the slimming of the display device of band contact panel, the distance between contact panel and display panel becomes narrower, and in addition, along with the progress of the large area of the display device of band contact panel, contact panel becomes easy distortion.Therefore, the problem of Newton ring becomes more remarkable.

It should be noted that, below, the Newton ring distortion with contact panel produced also is called watermark especially.

For the problem of such watermark, such as, propose following scheme in patent documentation 3: potting resin material in the gap of contact panel and display panels and form resin bed, thus, eliminate the reflection of the interface in the gap with contact panel and display panels.

But, when potting resin material manufactures final goods, even if find unfavorable condition after producing end article in contact panel, also cannot only change this contact panel.In addition, be difficult to resin material is filled into completely in the gap of contact panel and display panels, if formed containing alveolate state, then can become the reason of the defect of display image.

At this, known following method: in the display device that display panel and contact panel reserve interval and configure, arrange male and fomale(M&F) on the surface of display panel, utilizes this male and fomale(M&F) to make incident light diffusion, thus suppress the generation (such as, see patent documentation 4) of Newton ring.

But be provided with in the display device of band contact panel of male and fomale(M&F) at such on the surface of display panel, this male and fomale(M&F) makes image light scattering, sometimes produces so-called dazzle.

For the problem of such dazzle, same with the above-mentioned film be assembled in the meticulous image display device of superelevation, also cannot adopt the method for the internal haze improving display panel.

In addition, for the problem of such dazzle, the direction that the method etc. being also in a ratio of below half to the size at the concavo-convex interval (Sm) and pixel that such as make male and fomale(M&F) reduces concavo-convex interval is studied.But, for the image display device that superelevation is meticulous, use the method at the concavo-convex interval of existing reduction sometimes fully cannot suppress dazzle.

Prior art document

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Publication 2010-102186 publication

Patent documentation 2: Japanese Unexamined Patent Publication 2010-15412 publication

Patent documentation 3: Japanese Unexamined Patent Publication 2004-077887 publication

Patent documentation 4: Japanese Unexamined Patent Publication 2002-189565 publication

Summary of the invention

Invent problem to be solved

In view of above-mentioned present situation, the object of the present invention is to provide can suppressing to shine upon, suppress dazzle while Newton ring and the display device of total mist degree and the low blooming of internal haze and the band contact panel that can fully suppress watermark and dazzle to produce.

For solving the means of problem

The present invention is a kind of blooming, it has be laminated with the formation that surface has the optical layers of concaveconvex shape on Mght-transmitting base material, it is characterized in that, total haze value is more than 0% and less than 5%, internal haze value is more than 0% and less than 5%, when the transmission image sharpness using 0.125mm wide light comb to measure being set to C (0.125), the transmission image sharpness using 0.25mm wide light comb to measure being set to C (0.25), meet following formula (1) and formula (2)

C(0.25)-C(0.125)≥2％(1)

C(0.125)≤64％(2)。

In addition, another way of the present invention is a kind of blooming, and it has be laminated with the formation that surface has the optical layers of concaveconvex shape on Mght-transmitting base material, it is characterized in that, the half-peak breadth of the surface elevation distribution on the surface of described blooming is more than 200nm, and the mean curvature of concave-convex surface is 0.30mm ^-1below.

For blooming of the present invention, total haze value of preferred above-mentioned blooming is more than 0% and less than 5%, and the internal haze value of above-mentioned blooming is more than 0% and less than 5%.

In addition, for blooming of the present invention, total haze value of preferred above-mentioned blooming is more than 0% and less than 1%, and the internal haze value of above-mentioned blooming is essentially 0%.

In addition, for blooming of the present invention, preferred above-mentioned optical layers contains resin glue and particulate.

In addition, preferred above-mentioned particulate is inorganic oxide particle.

The average primary particle diameter of preferred above-mentioned inorganic oxide particle is more than 1nm and below 100nm, and in addition, preferred above-mentioned inorganic oxide particle is that the inorganic oxide particle of hydrophobization process has been carried out on surface.

In addition, the present invention is a kind of display device with contact panel, it has formation blooming of the present invention and contact panel subtend configured, it is characterized in that, blooming of the present invention and above-mentioned contact panel configure with the optical layers in above-mentioned blooming and above-mentioned contact panel mode subtend facing with each other under the state each other with gap.

Below, the present invention is explained.

It should be noted that, in this instructions, " resin " refers to the concept also comprising monomer, oligomer etc. in case of no particular description.

In addition, below, for item common in the blooming of the present invention of blooming of the present invention and other modes, only claim blooming of the present invention to be described.

Present inventor has performed further investigation, found that, specific concaveconvex shape is formed by making the surface of blooming, the generation of dazzle can be suppressed to heavens and not by the impact of internal haze of blooming, and then to find, the formation configured by blooming and contact panel subtend, even if be provided with gap between blooming and contact panel, also can suppress the generation of watermark to heavens, good display image can be obtained, thus complete the present invention.

It should be noted that, due to the generation of the Newton ring that such blooming of the present invention can also suppress watermark so to heavens, therefore, also can be used as the optical layers configuring with contact panel subtend to use.

Fig. 1 is the sectional view schematically showing blooming of the present invention.

In blooming 11 of the present invention, there is the formation that Mght-transmitting base material 12 is laminated with the surperficial optical layers 13 with concaveconvex shape.

Total haze value of blooming 11 of the present invention is more than 0% and less than 5%, and internal haze value is more than 0% and less than 5%.

Total haze value and internal haze value be as blooming entirety measure time value.

It should be noted that, above-mentioned total haze value and internal haze value can use haze meter (HM-150, in village, color technical institute manufactures) to be measured by the method based on JISK7136.Specifically, haze meter is used to measure total haze value of blooming according to JISK7136.Then, on the surface of blooming, paste triacetyl cellulose base material (Fuji Photo Film Co., Ltd. manufactures, TD60UL) by transparent optical bonding coat.Thus, the concaveconvex shape on the surface of blooming collapses, and the surface of blooming becomes smooth.Then, in this condition, use haze meter (HM-150, in village, color technical institute manufactures) to measure haze value according to JISK7136, obtain internal haze value thus.Internal haze when this internal haze is the additional concaveconvex shape in the surface of blooming.

Total haze value of blooming 11 of the present invention is preferably less than 1%, is more preferably more than 0.3% and less than 0.5%.Internal haze value is preferably essentially 0%.At this, " internal haze value is essentially 0% " is not limited to the situation that internal haze value is entirely 0%, even if its implication comprise internal haze value be greater than 0% but still in the scope of error at measurment, internal haze value can substantially be considered as 0% scope (such as, the internal haze value of less than 0.3%).

When total haze value of blooming 11 be more than 0% and less than 5%, internal haze value be more than 0% and less than 5%, the surface haze value of blooming 11 is more than 0% and less than 5%.The surface haze value of blooming 11 is preferably more than 0% and less than 1%, is more preferably more than 0% and less than 0.3%.Surface haze value is only caused by the concaveconvex shape on the surface of blooming 11, by deducting internal haze value from total haze value, can obtain the surface haze value only caused by the concaveconvex shape on the surface of blooming 11.

In blooming 11 of the present invention, when the transmission image sharpness of the blooming 11 using 0.125mm wide light comb to measure being set to C (0.125), the transmission image sharpness of the blooming 11 using 0.25mm wide light comb to measure being set to C (0.25), meet following formula (1) and formula (2).

C(0.25)-C(0.125)≥2％(1)

C(0.125)≤64％(2)

It should be noted that, above-mentioned " transmission image sharpness " can utilize the transmission image sharpness determinator of the transmission beam method of the image definition based on JISK7374 to measure.As such determinator, such as, can enumerate the image definition analyzer ICM-1T etc. that SUGATESTINSTRUMENTS company manufactures.

In addition, as shown in Figure 2, transmission image sharpness determinator 100 possesses light source 101, slit 102, lens 103, lens 104, light comb 105 and optical receiver 106, lens 103 are utilized to make to send and the light passed through from slit 102 becomes directional light from light source 101, this directional light is made to be irradiated to Mght-transmitting base material 12 side of blooming 11, utilize lens 104 that the light of concaveconvex shape 14 transmission of the optical layers 13 from blooming 11 is assembled, optical receiver 106 is utilized to receive the light passed through from light comb 105, based on the light quantity received by this optical receiver 106, transmission image sharpness C is calculated by following formula (3).

C(n)＝{(M-m)/(M+m)}×100(％)(3)

It should be noted that, in formula (3), C (n) is the transmission image sharpness (%) when width that light is combed is n (mm), M is the highest light quantity of width when being n (mm) of light comb, the minimum light quantity that m is the width of light comb when being n (mm).

The length direction that light comb 105 can comb 105 along light moves, and it has shading light part and transmissive portion.The light comb shading light part of 105 is 1:1 with the ratio of the width of transmissive portion.At this, in JISK7374, as light comb, be defined as 5 kinds of light combs that width is 0.125mm, 0.25mm, 0.5mm, 1.0mm, 2.0mm.

In the present invention, the above-mentioned formula of blooming demand fulfillment (1) and formula (2).Its reason is as follows.

Namely, first, in blooming, in order to obtain the anti-Newton ring such as shining upon property, watermark preventive, form concaveconvex shape on the surface of optical layers, but the present inventor studies discovery, by meeting the condition of above-mentioned formula (2), that is, make the value of C (0.125) be less than 64%, can effectively prevent from shining upon, watermark.

It should be noted that, anti-shining upon property in the present invention refers to the characteristic of shining upon unnoticed degree of the background of observer (observer) and observer, such as refer to: although can recognize the existence of observer, its profile is unsharp fringe; Further, although can recognize the existence of the object be in the background of observer, profile, obscure boundary are clear.Like this, the profile of observer etc. are just fuzzy, reach the state of shining upon for observer and not arousing attention.

On the other hand, the recess of this concaveconvex shape, protuberance sometimes make that light is assembled, diffusion and play the such effect of lens (lens effect).And think, when producing such lens effect, the black matrix" separate the pixel of liquid crystal display etc. and the transmitted light from pixel are strengthened randomly, thereby produce dazzle.

So, the present inventor is studied further, result has been understood fully, be the diffusion of more minute angle by making the diffusion of the light caused by the concaveconvex shape on the surface of the optical layers being formed in blooming, specifically, by meeting the condition of above-mentioned formula (1), namely, make the value of C (0.25)-C (0.125) be more than 2%, the generation of dazzle can be suppressed.Think that its reason is as follows.

That is, little light is combed, and transmission image sharpness more can be subject to the impact of minute angle diffusion and be worth decline.Therefore can say, the value under little light comb is less and value under large light comb is larger, then the diffusion of extensive angle is fewer.

Therefore think, relative to the value of C (0.25), by making value as the C (0.25) of the light comb of large number than the value large more than 2% of C (0.125), the diffusion of minute angle can be carried out, thinking in addition, by carrying out the diffusion of minute angle, lens effect can be made minimum, therefore, it is possible to pole prevents dazzle effectively.

Thus, the above-mentioned formula of blooming demand fulfillment (1) and formula (2).

It should be noted that, usually, those skilled in the art can predict, from the view point of suppression dazzle, the difference of the value of C (0.25) and the value of C (0.125) is the smaller the better, and when this difference is large, dazzle aggravates.This point have also been obtained confirmation in such as Japanese Unexamined Patent Publication 2010-269504 publication.Describe in the disclosure publication, from the view point of suppression dazzle, the transmission image sharpness that the light of use 0.125mm is combed is more than 0.70 with the ratio of the transmission image sharpness using the light of 2.0mm to be combed, and preferably makes this than for more than 0.80 and less than 0.93.Namely, in the disclosure publication, although do not use the light of 0.25mm to comb, but describe above-mentioned ratio and be more preferably more than 0.80 compared to more than 0.70, therefore, the directivity that the transmission image sharpness that the light giving use 0.125mm is combed is preferably less with the difference of the transmission image sharpness using the light of 2.0mm to be combed.On the other hand, contrary with this prediction, in the present invention, 1 in order to suppress dazzle, makes the difference of the value of the value of C (0.25) and C (0.125) be more than 2%.

Therefore can say, the blooming meeting above-mentioned formula (1) and formula (2) is the blooming beyond the measurable scope arrived of technical level based on existing known blooming.

It should be noted that, in present specification, when being called optical laminate, also representing blooming.

Fig. 3 is the sectional view of the display device schematically showing the band contact panel employing blooming 11 of the present invention.

As shown in Figure 3, in the display device 30 of band contact panel of the present invention, blooming 31 and contact panel 35 subtend configure, and blooming 31 is laminated with the optical layers 33 that surface has concaveconvex shape 34 on a surface of Mght-transmitting base material 32.

In the display device 30 of band contact panel of the present invention, blooming 3 and contact panel 35 configure with the mode subtend that optical layers 33 (concaveconvex shape 34) and contact panel 35 are facing with each other under the state each other with gap.

At this, as contact panel 35, resistance membrane type contact panel, capacitive touch panel etc. can be enumerated, in the display device 30 of band contact panel of the present invention, any one mode can be used, wherein, preferred capacitive touch panel.

In the display device 30 of band contact panel of the present invention, total haze value of blooming 31 is more than 0% and less than 5%, and internal haze value is more than 0% and less than 5%.

Total haze value and internal haze value be as blooming entirety measure time value.

In the display device of band contact panel of the present invention, total haze value of blooming 31 is preferably less than 1%, is more preferably more than 0.3% and less than 0.5%.

Internal haze value is preferably essentially 0%.

At this, " internal haze value is essentially 0% " is not limited to the situation that internal haze value is entirely 0%, even if its implication comprise internal haze value be greater than 0% but still in the scope of error at measurment, internal haze value can substantially be considered as 0% scope (such as, the internal haze value of less than 0.3%).

When total haze value of blooming 31 be more than 0% and less than 5%, internal haze value be more than 0% and less than 5%, the surface haze value of blooming 31 is more than 0% and less than 5%.

The surface haze value of blooming 31 is preferably more than 0% and less than 1%, is more preferably more than 0% and less than 0.3%.

Surface haze value is only caused by the concaveconvex shape on the surface of blooming 31, by deducting internal haze value from total haze value, can obtain the surface haze value only caused by the concaveconvex shape on the surface of blooming 31.

In the display device of band contact panel of the present invention, when the transmission image sharpness of the blooming 31 using 0.125mm wide light comb to measure being set to C (0.125), the transmission image sharpness of the blooming 31 using 0.25mm wide light comb to measure being set to C (0.25), meet following formula (1) and (2).

C(0.25)-C(0.125)≥2％(1)

C(0.125)≤64％(2)

In the display device of band contact panel of the present invention, the difference of the value of above-mentioned C (0.25) and the value of C (0.125) is preferably more than 5%, is more preferably more than 10%.In addition, the difference of the value of above-mentioned C (0.25) and the value of C (0.125) is preferably less than 30%.

The value of above-mentioned C (0.125) is preferably less than 60%, is more preferably less than 50%.In addition, the value of above-mentioned C (0.125) is preferably more than 5%, is more preferably more than 20%.

In addition, for the blooming of the present invention of another way, the half-peak breadth of the surface elevation distribution on the surface of the blooming 11 shown in Fig. 1 is more than 200nm.

At this, the half-peak breadth that the surface elevation on the surface of above-mentioned blooming is distributed is that the reason of more than 200nm is, if within the scope of this, then eye-observation is less than watermark, that is, watermark can be made invisible.

As its reason, contemplate various theory, such as, can enumerate theory shown below.

Fig. 4 represents that the schematic diagram of the situation of reflection occurs the light incided in the display device of the band contact panel of the blooming of the present invention 11 employing another way.

As shown in Figure 4, for the light from contact panel 45 side incidence, there is the light that reflects with producing at the light that the surface (concaveconvex shape 44) of optical layers 43 occurs to reflect through gap 46 with the interface in gap 46 and interfere in optical layers 43 side, according to the thickness of each position in the gap 46 between contact panel 45 and the surface (concaveconvex shape 44) of optical layers 43, the interference color of each position change.

It should be noted that, in Fig. 4, show the situation producing interference in visible wavelength gamut, the interference color of the light (A) of the part that gap 46 is the thickest are red colour system, the interference color of the light (C) of the part that gap 46 is the thinnest are blue series, and the interference color of light (B) are the yellowish green colour system between light (A) and light (B).

Further, if the change of such interference color produces in the tiny area of people's None-identified, then each interference color generation colour mixture, can not be identified by the human eye as interference fringe (watermark).

That is, the variation in thickness in gap 46 distributes corresponding with the height of concaveconvex shape 44, therefore, as long as be formed in the distribution of fully generation interference color in visible wavelength gamut in the region making above-mentioned height distribute to be formed in human eye institute None-identified.

At this, the difference of the light path that the interference color of the upper limit wavelength of the light path that the interference color of the lower wavelength of visible wavelength produce and visible wavelength produce is maximum when light path is equivalent to 1 wavelength, because visible wavelength is in the scope of 380nm ~ 780nm, therefore optical path difference is now 400nm (780nm-380nm).

Therefore, if there is the optical path difference of more than 400nm and the distribution of the height of concaveconvex shape 44 is therebetween impartial as far as possible, then in visible wavelength gamut, fully interference color can be produced.

Further, above-mentioned light path is 2 times of the thickness in gap 46, therefore, as the variation in thickness in gap 46, as long as be more than 200nm.

In other words, if the surface elevation that there is the optical layers 43 of concaveconvex shape 44 on surface be more than 200nm scope in there is distribution impartial as far as possible.

Therefore can say, as long as the half-peak breadth of the surface elevation distribution on the surface of blooming 11 is more than 200nm, then there is distribution impartial as far as possible in concaveconvex shape 44 in the scope that above-mentioned surface elevation is more than 200nm, there is the height distribution fully producing interference color in visible wavelength gamut, thus watermark can be made invisible.

In addition, now, be distributed in small region in order to ensure the change of the thickness in gap 46, the i.e. surface elevation on the surface of optical layers 43, calculate surface elevation distribute according to eliminating the large concavo-convex surface distributed opisometer in interval in advance.

That is, the surface distributed curve applying long wavelength cutoff optical filter is used.

From the aspect making human eye None-identified, as the wavelength of long wavelength cutoff optical filter, be preferably 800 μm.

At this, the half-peak breadth of surface elevation distribution represents: according to utilizing contact surface roughness meter or non-contact surface roughmeter (such as, interference microscope, Laser Scanning Confocal Microscope, atomic force microscope etc.) the surface distributed curve that obtains, use histogram with height of concave convex (unit: nm) be transverse axis, with frequency (unit: counting) for half-peak breadth (height of the distribution at peak position place, the width of the distribution of the position of half height) (unit: nm) in longitudinal axis mapping and the concavo-convex distribution that obtains.

The half-peak breadth of above-mentioned surface elevation distribution is preferably more than 220nm, is more preferably more than 250nm.

In addition, the half-peak breadth of above-mentioned surface elevation distribution is preferably below 500nm.

When the half-peak breadth of surface elevation distribution is more than 500nm, the height of concave-convex surface is excessive, and dazzle likely aggravates.

The half-peak breadth of surface elevation distribution is more preferably below 400nm, more preferably below 300nm.

From simplicity, above-mentioned surface distributed curve preferably uses interference microscope to measure.

As such interference microscope, such as, can enumerate " NewView " series etc. that Zygo company manufactures.

The mean curvature of the concave-convex surface on the surface of the blooming of the present invention 11 of above-mentioned another way is 0.30mm ^-1below.

For preventing the objects such as watermark, form concaveconvex shape on the surface of optical layers, but the concavo-convex of this concaveconvex shape plays the such effect of lens (lens effect) sometimes.

And think, when producing such lens effect, the black matrix" separate the pixel of liquid crystal display etc. and the transmitted light from pixel are strengthened randomly, thereby produce dazzle.

What the present inventor carried out studying found that, the curvature of concaveconvex shape is larger, and lens effect is stronger, more easily produces dazzle.

Therefore, by making the mean curvature of the concave-convex surface on blooming surface be 0.30mm ^-1below, even if form concaveconvex shape, also very effectively dazzle can be prevented.

The mean curvature of concave-convex surface is preferably set to as 0.25mm ^-1below, more preferably 0.20mm is set as ^-1below.

In addition, the mean curvature of concave-convex surface is preferably 0.05mm ^-1above.

Mean curvature is less than 0.05mm ^-1time, anti-watermark is likely deteriorated.

At this, the mean curvature of concave-convex surface is obtained as follows.

Fig. 5 is the surface distributed curve of above-mentioned blooming, as shown in Figure 5, blooming surface distributed curve provides A (x1, y1), B (x2, y2) and C (x3, y3), the curvature of B point can be obtained as the inverse through A point, B point, this radius of a circle of 3 of C point, is expressed from the next.

[several 1]

$\frac{2\left|x_1{y}_2-x_2{y}_1+x_2{y}_3-x_3{y}_2+x_3{y}_1-x_1{y}_3\right|}{\sqrt{{\left(x_1-x_2\right)}^2+{\left(y_1-y_2\right)}^2}\&CenterDot;\sqrt{{\left(x_2-x_3\right)}^2+{\left(y_2-y_3\right)}^2}\&CenterDot;\sqrt{{\left(x_3-x_1\right)}^2+{\left(y_3-y_1\right)}^2}}$

On the surface distributed curve obtained in the same manner as when the surface elevation above-mentioned with calculating distributes, by being laterally set to x direction, short transverse is set to y direction, when the measuring interval of transverse direction is set to d, x2-x1=x3-x2=d, y1, y2, y3 are regarded as the height of each point, above formula can be rewritten as follows.

[several 2]

$\frac{2\left|\left(y_1-2y_2+y_3\right)d\right|}{\sqrt{d^2+{\left(y_1-y_2\right)}^2}\&CenterDot;\sqrt{d^2+{\left(y_2-y_3\right)}^2}\&CenterDot;\sqrt{4d^2+{\left(y_3-y_1\right)}^2}}$

Respectively above-mentioned calculating is carried out to each point by surface distributed curve, calculate the curvature of each point thus, these values are averaged, the mean curvature of concave-convex surface can be calculated thus.

Now, atomicly little concavo-convexly not contribute lens effect, be not preferably included in the calculating of curvature, therefore, when asking surface distributed curve, advantageous applications short wavelength cutoff filter is by atomic little concavo-convex composition removing.

From this aspect, as the wavelength of short wavelength's cutoff filter, be preferably 25 μm.

It should be noted that, usually, those skilled in the art can predict, from the view point of suppression dazzle, the value of the equispaced (Sm) of concave-convex surface is the smaller the better, when this value is large, dazzle aggravation (such as, see Japanese Unexamined Patent Publication 2010-191412 publication etc.).

But the equispaced of concave-convex surface reduces to mean that mean curvature increases.

Therefore can say, the value of half-peak breadth of above-mentioned surface elevation distribution and the mean curvature of concave-convex surface meet above-mentioned in the blooming of specific numerical range be blooming beyond the measurable scope arrived of technical level based on existing known blooming.

In addition, (following in the display device of band contact panel of the blooming of the present invention employing another way, display device also referred to as the band contact panel of the present invention of another way) in, the half-peak breadth of the surface elevation distribution on the surface of the blooming of the present invention 31 of the another way shown in Fig. 3 is more than 200nm.

At this, the half-peak breadth of surface elevation distribution represents: according to utilizing contact surface roughness meter or non-contact surface roughmeter (such as, interference microscope, Laser Scanning Confocal Microscope, atomic force microscope etc.) the surface distributed curve that obtains, use histogram with height of concave convex (unit: nm) be transverse axis, with frequency (unit: counting) for half-peak breadth (height of the distribution at peak position place, the width of the distribution of the position of half height) (unit: nm) in longitudinal axis mapping and the concavo-convex distribution that obtains.

In the display device of the band contact panel of the present invention of another way, the half-peak breadth of above-mentioned surface elevation distribution is preferably more than 220nm, is more preferably more than 250nm.

In addition, the half-peak breadth of above-mentioned surface elevation distribution is preferably below 500nm.

When the half-peak breadth of surface elevation distribution is more than 500nm, the height of concave-convex surface is excessive, and dazzle likely aggravates.

The half-peak breadth of surface elevation distribution is more preferably below 400nm, more preferably below 300nm.

From simplicity, above-mentioned surface distributed curve preferably uses interference microscope to measure.

As such interference microscope, such as, can enumerate " NewView " series etc. that Zygo company manufactures.

In the display device of the band contact panel of the present invention of another way, the mean curvature of the concave-convex surface on the surface of above-mentioned blooming is 0.30mm ^-1below.

The mean curvature of above-mentioned concave-convex surface is preferably 0.25mm ^-1below, 0.20mm is more preferably ^-1below.

In addition, the mean curvature of concave-convex surface is preferably 0.05mm ^-1above.

Mean curvature is less than 0.05mm ^-1time, anti-watermark is likely deteriorated.

It should be noted that, usually, those skilled in the art can predict, from the view point of suppression dazzle, the value of the equispaced (Sm) of concave-convex surface is the smaller the better, when this value is large, prediction dazzle aggravation (such as, see Japanese Unexamined Patent Publication 2010-191412 publication etc.).

But the equispaced of concave-convex surface reduces to mean that mean curvature increases.

Therefore can say, the value of half-peak breadth of above-mentioned surface elevation distribution and the mean curvature of concave-convex surface meet above-mentioned in the blooming of specific numerical range be blooming beyond the measurable scope arrived of technical level based on existing known blooming.

Blooming of the present invention is laminated with the optical layers that surface has concaveconvex shape on Mght-transmitting base material.

As above-mentioned Mght-transmitting base material, be not particularly limited as long as have light transmission, such as, can enumerate cellulose acylate base material, cyclic olefin polymer base material, polycarbonate substrate, acrylic ester polymer base material, polyester base material or glass baseplate etc.

As above-mentioned cellulose acylate base material, such as, can enumerate cellulose triacetate base material, cellulose diacetate base material etc.

In addition, as above-mentioned cyclic olefin polymer base material, such as, the base material etc. be made up of the polymkeric substance of norborneol alkene monomer and monocyclic cycloalkenyl hydrocarbon monomer etc. can be enumerated.

In addition, as above-mentioned polycarbonate substrate, the fatty poly-ester carbonate base material etc. such as aromatic copolycarbonate base material, diethylene glycol diene propyl carbonate that such as can to enumerate with bisphenols (bisphenol-A etc.) be matrix.

In addition, as aforesaid propylene acid esters based polymer base material, such as, can enumerate poly-(methyl) methyl acrylate base material, poly-(methyl) ethyl acrylate base material, (methyl) methyl acrylate-(methyl) butyl acrylate copolymer base material etc.It should be noted that, in this instructions, (methyl) acrylic acid represents acrylic or methacrylic acid.

As above-mentioned polyester base material, such as, can enumerate the base material etc. using at least one in polyethylene terephthalate, PTT, polybutylene terephthalate, PEN as constituent.

As above-mentioned glass baseplate, such as, can enumerate the glass baseplates such as soda-lime-silica glass, borosilicate glass, alkali-free glass.

Wherein, excellent and easily bonding with polarizer from the view point of retardance, preferred cellulose acylate base material, more preferably triacetyl cellulose base material (TAC base material) in cellulose acylate base material.Triacetyl cellulose base material be can make in 380 ~ 780nm of visible region average transmittance be more than 50% Mght-transmitting base material.The average transmittance of above-mentioned triacetyl cellulose base material is more than 70%, is more preferably more than 85%.

It should be noted that, as above-mentioned triacetyl cellulose base material, except pure triacetyl cellulose, also can form the fatty acid of ester and the cellulose esters obtained for the composition beyond acetic acid of also having share that cellulose acetate-propionate, cellulose acetate-butyrate are such as with cellulose.In addition, the various adjuvants such as other cellulose lower fatty acid ester or plastifier, ultraviolet light absorber, lubricants etc. such as diacetyl cellulose can be added with as required in these triacetyl celluloses.

From the aspect of retardance and excellent heat resistance, preferred cyclic olefin polymer base material, in addition, from the aspect of mechanical property and thermotolerance, preferred polyester base material.

As the thickness of above-mentioned Mght-transmitting base material, be not particularly limited, can be more than 5 μm and less than 1000 μm, the lower limit of the thickness of above-mentioned Mght-transmitting base material is preferably more than 15 μm from aspects such as treatability, is more preferably more than 25 μm.The upper limit of the thickness of above-mentioned Mght-transmitting base material is preferably less than 80 μm from the aspect of filming.

In blooming of the present invention, preferably above-mentioned Mght-transmitting base material with the interface portion of optical layers have mix have above-mentioned Mght-transmitting base material and containing weight-average molecular weight be less than 1000 photopolymerization monomer as monomeric unit resin be mixed in region.Above-mentionedly being mixed in region by having, the suppression of the interference fringe caused by the boundary reflection of above-mentioned Mght-transmitting base material and optical layers can be realized.

The photopolymerization monomer that above-mentioned photopolymerization monomer and the weight-average molecular weight contained as monomeric unit in the resin glue described later of optical layers are less than 1000 is identical monomer.

As the above-mentioned thickness being mixed in region, be preferably more than 0.01 μm and less than 1 μm.The display device of blooming of the present invention and band contact panel can utilize the male and fomale(M&F) described later of optical layers to suppress the generation of interference fringe fully, therefore, even if when the above-mentioned thickness being mixed in region is so thin, also can suppress the generation of interference fringe.It should be noted that, existing known antireflection film also suppresses interference fringe by being formed with the above-mentioned region that is mixed in being mixed in region same, but the thickness being mixed in region formed in existing known antireflection film is thick reaches more than 3 μm, the thickness being mixed in region formed in the present invention and being mixed in of being formed in existing antireflection film can be described as compared with region enough thin.

In addition, being above-mentionedly mixed in region by being formed, the adaptation of Mght-transmitting base material and optical layers can be improved further.

It should be noted that, as mentioned above, fully can be suppressed the generation of interference fringe by the male and fomale(M&F) of optical layers, therefore, also can not be formed in blooming and such be mixed in region.Even if when this do not formed be mixed in region, also the generation of interference fringe can be suppressed, therefore, even such as acrylic substrate, cyclic olefin polymer base material, polyester base material etc. are difficult to be formed the base material being mixed in region, also can use as Mght-transmitting base material.

As above-mentioned optical layers, such as, can enumerate the layer etc. playing the functions such as antireflection, firmly painting property, anti-glare, antistatic behaviour or soil resistance.

When above-mentioned optical layers is the layer also playing hard painting property except antireflection, optical layers preferably has the hardness in the pencil hardness test (4.9N load) of JISK5600-5-4 (1999) defined with more than " H ".

The surface of above-mentioned optical layers is the male and fomale(M&F) being formed with concaveconvex shape as mentioned above.It should be noted that, above-mentioned " surface of optical layers " refer in optical layers with the face of face (back side of the optical layers) opposition side of Mght-transmitting base material side.

In addition, if internal haze value is more than 0% and in the scope of less than 5%, then internal haze value does not affect transmission image sharpness, and therefore, transmission image sharpness is subject to the impact of the concaveconvex shape on the surface of blooming.On the other hand, in the present invention, the surface of blooming becomes the male and fomale(M&F) of optical layers.Therefore, in the present invention, the transmission image sharpness of blooming whether meets above-mentioned formula (1) and formula (2) is determined by the concaveconvex shape of the male and fomale(M&F) of optical layers.It should be noted that, below, male and fomale(M&F) blooming being met the optical layers of above-mentioned formula (1) and formula (2) is called " special male and fomale(M&F) ".

In addition, same with above-mentioned reason, if internal haze value is more than 0% and in the scope of less than 5%, then the generation of internal haze on dazzle of blooming does not affect, therefore, when internal haze in above-mentioned scope, the concaveconvex shape on the surface of blooming affects the generation of dazzle.Below, for the male and fomale(M&F) meeting the blooming of above-mentioned condition in the present invention also referred to as " special male and fomale(M&F) ".

Above-mentioned special male and fomale(M&F) can be formed by suitably regulating concavo-convex quantity, concavo-convex size or concavo-convex pitch angle etc., as the method regulated these, such as, can enumerate and use containing the formation photopolymerizable compound of resin glue and the optical layers composition of particulate after solidification to form the method etc. of male and fomale(M&F).

In the method for above-mentioned formation male and fomale(M&F), when photopolymerizable compound is polymerized (being cross-linked) and forms resin glue, there is not the part of particulate, photopolymerizable compound generation cure shrinkage, therefore producing contraction on the whole.On the other hand, there is the part of particulate, there is not cure shrinkage in particulate, therefore only has and is present in the upper and lower photopolymerizable compound generation cure shrinkage of particulate.Thus, there is the part of particulate compared with there is not the part of particulate, the thickness of optical layers is thickening, and thus the surface of optical layers becomes male and fomale(M&F).Therefore, by suitably selecting the kind of the kind of particulate, particle diameter and photopolymerizable compound and regulating film formation condition, the optical layers with special male and fomale(M&F) can be formed.

Above-mentioned optical layers is preferably formed by above-mentioned method containing resin glue and particulate.

Above-mentioned resin glue contains the polymkeric substance (cross-linking agent) of photopolymerizable compound.

Above-mentioned resin glue, except the polymkeric substance (cross-linking agent) containing photopolymerizable compound, can also contain solvent-dry type resin, thermoset resin.

Above-mentioned photopolymerizable compound is at least containing 1 optical polymerism functional group.It should be noted that, " optical polymerism functional group " in this instructions refers to the functional group that can be injected row polyreaction by illumination.

As such optical polymerism functional group, such as, can enumerate the ethylenic double bonds such as (methyl) acryloyl group, vinyl, allyl.It should be noted that, the implication of " (methyl) acryloyl group " comprises both " acryloyl group " and " methacryl ".

In addition, the light irradiated when being polymerized as making above-mentioned photopolymerizable compound, can enumerate the ionizing ray such as luminous ray and ultraviolet, X ray, electron ray, alpha ray, β ray and gamma-rays.

As above-mentioned photopolymerizable compound, such as, can enumerate photopolymerization monomer, optical polymerism oligomer or optical polymerism polymkeric substance, can carry out suitably regulating using to them.

As above-mentioned photopolymerizable compound, the combination of preferred light polymerizable monomer and optical polymerism oligomer or optical polymerism polymkeric substance.It should be noted that, when formed above-mentioned be mixed in region, as photopolymerizable compound, at least containing photopolymerization monomer.

Above-mentioned photopolymerization monomer is preferably the photopolymerization monomer that weight-average molecular weight is less than 1000.By making the weight-average molecular weight of above-mentioned photopolymerization monomer be less than 1000, photopolymerization monomer can be made to penetrate in Mght-transmitting base material with penetrating into together with the solvent in Mght-transmitting base material.Thereby, it is possible to the near interface of optical layers in above-mentioned Mght-transmitting base material formed refractive index for relaxing this Mght-transmitting base material and optical layers, mix have Mght-transmitting base material and contain this photopolymerization monomer as monomeric unit resin be mixed in region.It should be noted that, such photopolymerization monomer only can use one, also can use two or more.

As above-mentioned photopolymerization monomer, the polyfunctional monomer preferably containing the optical polymerism functional group more than 2 (i.e. two senses).

As monomers more than above-mentioned two senses, such as, can enumerate: trimethylolpropane tris (methyl) acrylate, tripropylene glycol two (methyl) acrylate, diethylene glycol two (methyl) acrylate, dipropylene glycol two (methyl) acrylate, pentaerythrite three (methyl) acrylate, pentaerythrite four (methyl) acrylate, dipentaerythritol six (methyl) acrylate, 1,6-hexanediol two (methyl) acrylate, neopentyl glycol two (methyl) acrylate, trimethylolpropane tris (methyl) acrylate, double trimethylolpropane four (methyl) acrylate, dipentaerythritol five (methyl) acrylate, tripentaerythritol eight (methyl) acrylate, tetrapentaerythritol ten (methyl) acrylate, isocyanuric acid three (methyl) acrylate, isocyanuric acid two (methyl) acrylate, polyester three (methyl) acrylate, polyester two (methyl) acrylate, bis-phenol two (methyl) acrylate, diglycerol four (methyl) acrylate, two (methyl) acrylic acid diamantane ester, two (methyl) isobornyl acrylate, bicyclopentane two (methyl) acrylate, tristane two (methyl) acrylate, double trimethylolpropane four (methyl) acrylate or by them with PO, the modifications such as EO and the monomer obtained.

Wherein, from the view point of obtaining the high optical layers of hardness, preferred pentaerythritol triacrylate (PETA), dipentaerythritol acrylate (DPHA), tetramethylol methane tetraacrylate (PETTA), Dipentaerythritol Pentaacrylate (DPPA) etc.

The weight-average molecular weight of above-mentioned optical polymerism oligomer is more than 1000 and be less than 10000.

As above-mentioned optical polymerism oligomer, the multifunctional oligomer preferably more than two senses, preferred light polymerizable functional group is the multifunctional oligomer of more than 3 (trifunctionals).

As above-mentioned multifunctional oligomer, such as, can enumerate: polyester (methyl) acrylate, carbamate (methyl) acrylate, polyester-urethane (methyl) acrylate, polyethers (methyl) acrylate, polyvalent alcohol (methyl) acrylate, melamine (methyl) acrylate, isocyanuric acid ester (methyl) acrylate, epoxy (methyl) acrylate etc.

The weight-average molecular weight of above-mentioned optical polymerism polymkeric substance more than 10,000, as weight-average molecular weight, preferably greater than 10,000 and be less than 80,000, more preferably above 10,000 and be less than 40,000.When weight-average molecular weight is more than 80,000, viscosity is high, and be therefore coated with adaptability and reduce, the outward appearance of the blooming obtained is likely deteriorated.

As above-mentioned multifunctional polymkeric substance, carbamate (methyl) acrylate, isocyanuric acid ester (methyl) acrylate, polyester-urethane (methyl) acrylate, epoxy (methyl) acrylate etc. can be enumerated.

Above-mentioned solvent-dry type resin is by means of only making thermoplastic resin etc. when being coated with in order to the solvent seasoning regulating solid constituent to add forms the resin of overlay film.When being added with solvent-dry type resin, when forming optical layers, the overlay film defect of the coated face of masking liquid effectively can be prevented.As solvent-dry type resin, be not particularly limited, usually can use thermoplastic resin.

As above-mentioned thermoplastic resin, such as, can enumerate: phenylethylene resin series, (methyl) acrylic resin, vinyl acetate system resin, vinyl ether system resin, halogen-containing resin, ester ring type ethylene series resin, polycarbonate-based resin, polyester based resin, polyamide series resin, cellulose derivative, silicon-type resin and rubber or elastic body etc.

Above-mentioned thermoplastic resin is preferably amorphism and dissolves in organic solvent (particularly can dissolve the shared solvent of polymkeric substance of more than two kinds, curability compound).Particularly from the view point of the transparency, weatherability, optimization styrene system resin, (methyl) acrylic resin, ester ring type ethylene series resin, polyester based resin, cellulose derivative (cellulose esters etc.) etc.

As above-mentioned heat-curing resin, be not particularly limited, such as, can enumerate phenolics, carbamide resin, diallyl phthalate resin, melamine resin, guanamine resin, unsaturated polyester resin, urethane resin, epoxy resin, amino-alkyd resin, melamine-urea aldehyde cocondensation resin, silicones, polyorganosiloxane resin etc.

Above-mentioned particulate can be any one in inorganic particles or organic fine particles, and wherein, preference is as silicon dioxide (SiO ₂) particulate, alumina particulate, titanium dioxide fine particles, tin oxide particles, antimony dopant tin oxide (the be called for short ATO) inorganic oxide particle such as particulate, zinc oxide fine particles.Above-mentioned inorganic oxide particle can form condensed matter in optical layers, according to the cohesion degree of this condensed matter, can form special male and fomale(M&F).

As above-mentioned organic fine particles, such as, plastic bead can be enumerated.As the concrete example of plastic bead, polystyrene bead, melamine resin pearl, acrylic resin pearl, acrylic resin-styrene pearl, organic silica bead, benzoguanamine pearl, benzoguanamine-formaldehyde condensation pearl, polycarbonate pearl, polyethylene beads etc. can be enumerated.

Above-mentioned organic fine particles has preferably carried out appropriate adjustment to the resistance of the antagonism cure shrinkage that particulate in above-mentioned cure shrinkage has.In order to regulate this to the resistance of resisted shrinkage, preferably make the multiple blooming containing the different organic fine particles of the hardness made by changing three-dimensional cross-linked degree in advance, the transmission image sharpness of blooming is evaluated, selects the crosslinking degree being applicable to forming special male and fomale(M&F) thus.

When using inorganic oxide particles as above-mentioned particulate, preferred inorganic oxide particles implements surface treatment.By implementing surface treatment to above-mentioned inorganic oxide particle, the distribution of particulate in optical layers suitably can be controlled, and, the chemical proofing of particulate itself and resistance to saponifiability can also be improved.

As above-mentioned surface treatment, the surface of particulate is preferably made to be hydrophobic hydrophobization process.Such hydrophobization process can be carried out chemical reaction to realize by the surface of the surface conditioning agent and particulate that make silanes, silazane class etc.As concrete surface conditioning agent, such as, can enumerate dimethyldichlorosilane, silicone oil, hexamethyldisilazane, octyl group silane, cetyl silane, amino silane, methacryl silanes, octamethylcy-clotetrasiloxane, dimethyl silicone polymer etc.When particulate is inorganic oxide particle, hydroxyl is there is on the surface of inorganic oxide particle, but by implementing hydrophobization process as above, the hydroxyl being present in the surface of inorganic oxide particle reduces, the specific surface area reduction measured by BET method of inorganic oxide particle, inorganic oxide particle can be suppressed excessively to condense simultaneously, the functional layer with special male and fomale(M&F) can be formed.

When using inorganic oxide particles as above-mentioned particulate, preferred inorganic oxide particle is amorphous state.This is because under inorganic oxide particles is crystalline situation, due to the lattice imperfection comprised in its crystal structure, the lewis acid of inorganic oxide particle strengthens, the likely excessive cohesion of uncontrollable inorganic oxide particle.

Particulate is not particularly limited relative to the content of above-mentioned optical layers, is preferably more than 0.1 quality % and below 5.0 quality %.Content due to particulate is more than 0.1 quality %, therefore, it is possible to form special male and fomale(M&F) more reliably, in addition, content due to particulate is below 5.0 quality %, therefore excessively condensed matter can not be produced, internal diffusion can be suppressed and/or produce on the surface of functional layer large concavo-convex, gonorrhoea sense can be suppressed thus.The lower limit of fraction of particle is more preferably more than 0.2 quality %, and the upper limit of fraction of particle is more preferably below 3.0 quality %.

The shape of above-mentioned particulate preferably under individual particle state is spherical.By making the individual particle of particulate be so spherical, when blooming being configured at the picture display face of image display device, the image of contrast excellence can be obtained.At this, the implication of " spherical " comprises such as just spherical, oval spherical etc., but does not comprise so-called unbodied particulate.

When using organic fine particles as above-mentioned particulate, from the view point of the diffusion suppressing the light caused by particulate, reduce the refringence of above-mentioned particulate and resin glue preferably by the copolymerization ratios changing the different resin of refractive index, such as, make refringence be less than 0.01.The average primary particle diameter of organic fine particles is preferably less than 8.0 μm, is more preferably less than 5.0 μm.

The use be preferably in said method of above-mentioned optical layers forms the particulate of loose condensed matter and the optical layers formed." loose condensed matter " refers to following condensed matter: the condensed matter of particulate is not block, and it is had to comprise and is connected by primary particle and the flexing portion that formed and the structure of inside region clamped by flexing portion.At this, in this instructions, " flexing portion " is the concept also comprising bend.As the shape with flexing portion, such as, can enumerate V shape, U-shaped, arc-shaped, C-shaped, Coiling-type, caged etc.The two ends in above-mentioned flexing portion can close, such as, and can for having the ring texture in flexing portion.

Above-mentioned flexing portion can be formed by being connected by primary particle and 1 of flexing particle coagulation body is formed, the stem portion that also can be formed by being connected by primary particle props up out with from trunk portion and the branch being connected by primary particle and being formed is formed, in addition, can also by propping up out from trunk portion and forming at 2 branches that stem portion connects.Above-mentioned " stem portion " refers to part the longest in the condensed matter of particulate.

Above-mentioned inside region bonded dose of resin landfill.Above-mentioned flexing quality award from the ministry choosing exists in the mode of the thickness direction clamping inside region from optical layers.

Cohesion is for working as single solid when conglomeration body forms cure shrinkage (polymerization shrinkage) of the photopolymerizable compound of resin glue after hardening, and therefore, the male and fomale(M&F) of optical layers is corresponding with the shape of condensed matter.On the other hand, the inside region that the condensed matter that particulate loosely condenses has flexing portion and clamped by flexing portion, therefore, works as the solid with buffer action when cure shrinkage.Therefore, the condensed matter that loosely condenses of particulate can easily and collapse with having homogeneity when cure shrinkage.Thus, for gently compared with when shape and the particle coagulation of male and fomale(M&F) are block, in addition, be not easy producing large concaveconvex shape in local.

When above-mentioned optical layers is formed by the condensed matter loosely condensed, can also by the size regulating thickness to regulate the condensed matter loosely condensed.That is, when thickness is large, the size of the condensed matter loosely condensed easily becomes larger.Thereby, it is possible to make concavo-convex size larger, make concavo-convex interval wider.

In addition, as the particulate forming loose condensed matter, such as preferably average primary particle diameter is the inorganic oxide particle of more than 1nm and below 100nm.Average primary particle diameter due to particulate is more than 1nm, therefore, it is possible to more easily form the optical layers with special male and fomale(M&F), in addition, because average primary particle diameter is below 100nm, therefore, it is possible to suppress the diffusion of the light caused by particulate, excellent dark contrast can be obtained.The lower limit of the average primary particle diameter of particulate is more preferably more than 5nm, and the upper limit of the average primary particle diameter of particulate is more preferably below 50nm.It should be noted that, the average primary particle diameter of particulate is the value using image processing software to measure from the image of cross section electron microscope (transmission-type such as preferred TEM, STEM and multiplying power are the cross section electron microscope of more than 50,000 times).

When using inorganic oxide particle as when forming the particulate of above-mentioned loose condensed matter, the male and fomale(M&F) of preferred optical layers concavo-convex is only caused by inorganic oxide particle, is formed." male and fomale(M&F) of optical layers concavo-convex is only caused by inorganic oxide particle, formed " is expressed as follows implication: the concavo-convex situation being caused by the particulate beyond inorganic oxide particle except being caused by inorganic oxide particle, also, formed not comprising in fact the male and fomale(M&F) of optical layers." not comprising in fact " described herein is expressed as follows implication: other particulates are the concavo-convex particulate of the male and fomale(M&F) not forming optical layers, or, even if if form the concavo-convex few amount also not affecting antireflection, then optical layers also can containing other particulates beyond inorganic oxide particle.

In above-mentioned inorganic oxide particle, from the view point of forming loose condensed matter, can easily form special male and fomale(M&F), particularly preferably fumed silica.

Above-mentioned fumed silica is the amorphous silicon di-oxide with the particle diameter of below 200nm made by dry process, can obtain by making the volatile compound containing silicon carry out in the gas phase reacting.Specifically, such as can enumerate and make silicon tetrachloride (SiCl ₄) etc. silicon compound be hydrolyzed and the fumed silica etc. generated in the flame of oxygen and hydrogen.As the commercially available product of above-mentioned fumed silica, such as, can enumerate the AEROSILR805 etc. that NIPPONAEROSIL company manufactures.

Above-mentioned fumed silica shows hydrophilic fumed silica and shows hydrophobic fumed silica, wherein, reduce from the view point of moisture absorption generation rate, easily disperse in functional layer composition, preferably show hydrophobic fumed silica.

Hydrophobic fumed silica can carry out chemical reaction to obtain by making the silanol group that the surface of surface conditioning agent as above and fumed silica exists.The viewpoint of above-mentioned condensed matter of being easy to get calmly is set out, and most preferably fumed silica has been carried out octyl group silane treatment.

The BET specific surface area of above-mentioned fumed silica is preferably 100m ²/ more than g and 200m ²/ below g.Be 100m by making the BET specific surface area of fumed silica ²/ more than g, fumed silica can not excessively disperse, and easily forming the condensed matter of appropriateness, in addition, is 200m by making the BET specific surface area of fumed silica ²/ below g, fumed silica not easily forms excessive condensed matter.The lower limit of the BET specific surface area of fumed silica is more preferably 120m ²/ g, more preferably 140m ²/ g.The upper limit of the BET specific surface area of fumed silica is more preferably 180m ²/ g, more preferably 165m ²/ g.

Such optical layers such as can be formed by following method.

First, following optical layers composition is coated with on the surface of above-mentioned Mght-transmitting base material.

As the method for the above-mentioned optical layers composition of coating, such as, can enumerate the known coating process such as spin coating, infusion process, spraying process, slope stream rubbing method, stick coating method, rolling method, woodburytype, mould Tu Fa.

Above-mentioned optical layers composition is at least containing above-mentioned photopolymerizable compound and above-mentioned particulate.In addition, above-mentioned thermoplastic resin, above-mentioned heat-curing resin, solvent, polymerization initiator can be added as required in optical layers composition.And then, according to the object such as hardness, suppression cure shrinkage, control refractive index improving optical layers, existing known spreading agent, surfactant, antistatic agent, silane coupling agent, thickening agent, anti-coloring agent, colorant (pigment, dyestuff), defoamer, levelling agent, fire retardant, ultraviolet light absorber, tackifiers, polymerization inhibitor, antioxidant, surface modifier, lubricant etc. can be added in optical layers composition.

Above-mentioned solvent may be used for following object: regulate viscosity to make above-mentioned optical layers composition be easy to coating; Regulate velocity of evaporation, dispersiveness to particulate, the cohesion degree of particulate when regulating optical layers to be formed, thus be easy to form special male and fomale(M&F).

As such solvent, such as can illustrate: alcohol (such as methyl alcohol, ethanol, propyl alcohol, isopropyl alcohol, normal butyl alcohol, sec-butyl alcohol, the tert-butyl alcohol, phenmethylol, PGME, ethylene glycol), ketone (acetone, methyl ethyl ketone (MEK), cyclohexanone, methyl isobutyl ketone, diacetone alcohol, cycloheptanone, metacetone etc.), ethers (1, 4-diox, dioxolanes, tetrahydrofuran etc.), aliphatic hydrocarbon (hexane etc.), ester ring type hydro carbons (cyclohexane etc.), aromatic hydrocarbon based (toluene, dimethylbenzene etc.), halogenated hydrocarbon (methylene chloride, ethylene dichloride etc.), ester class (methyl formate, methyl acetate, ethyl acetate, propyl acetate, butyl acetate, ethyl lactate etc.), cellosolve class (methyl cellosolve, ethyl cellosolve, butyl cellosolve etc.), cellosolve acetate class, sulfoxide type (dimethyl sulfoxide (DMSO) etc.), amide-type (dimethyl formamide, dimethyl acetamide etc.) etc., also can be their potpourri.

In addition, when described above Mght-transmitting base material with the near interface of optical layers formed be mixed in region, as above-mentioned solvent, use containing solvent that is high to the perviousness of Mght-transmitting base material, that make Mght-transmitting base material dissolving or swelling penetrating solvents, simultaneously, as photopolymerizable compound, use at least containing the photopolymerizable compound that weight-average molecular weight is the photopolymerization monomer of less than 1000.

By using above-mentioned penetrating solvents and photopolymerization monomer, not only penetrating solvents penetrates in Mght-transmitting base material, photopolymerization monomer also penetrates in Mght-transmitting base material, therefore, it is possible to Mght-transmitting base material and the near interface of optical layers formed mix have Mght-transmitting base material and containing photopolymerization monomer as monomeric unit resin be mixed in region.

As above-mentioned penetrating solvents, such as can enumerate: ketone (acetone, methyl ethyl ketone (MEK), cyclohexanone, methyl isobutyl ketone, diacetone alcohol, cycloheptanone, metacetone), ester class (methyl formate, methyl acetate, ethyl acetate, propyl acetate, butyl acetate, ethyl lactate etc.), ethers (1, 4-diox, dioxolanes, tetrahydrofuran etc.), cellosolve class (methyl cellosolve, ethyl cellosolve, butyl cellosolve etc.), cellosolve acetate class, sulfoxide type (dimethyl sulfoxide (DMSO) etc.), phenols (phenol, o-chlorphenol) etc.In addition, also can be their potpourri.When using triacetyl cellulose base material as Mght-transmitting base material, wherein, as penetrating solvents, such as, be preferably selected from least one solvent in the group be made up of methyl isobutyl ketone, methyl ethyl ketone, cyclohexanone, methyl acetate, ethyl acetate, propyl acetate, butyl acetate, in addition, when using polyester base material as Mght-transmitting base material, preferred o-chlorphenol.

Above-mentioned polymerization initiator is penetrated by illumination to decompose, produce the composition that free radical causes or carry out the polymerization (being cross-linked) of photopolymerizable compound.

As long as such polymerization initiator can be released through illumination and penetrate the material causing free radical polymerization; be not particularly limited; existing known polymerization initiator can be used; as concrete example, such as, can enumerate acetophenones, benzophenone, Michaelis benzoylbenzoic acid ester, α-amyl group oxime ester, thioxanthene ketone, phenylpropyl alcohol ketone, benzil class, benzoin class, acylphosphine oxide class.In addition, preferably mixing photosensitizer uses, and as its concrete example, such as, can enumerate n-butylamine, triethylamine, poly-normal-butyl phosphine etc.

As above-mentioned polymerization initiator, when above-mentioned resin glue is the resin system with free-radical polymerised unsaturated group, be preferably used alone or as a mixture acetophenones, benzophenone, thioxanthene ketone, benzoin, benzoin methylether etc.

The content of the polymerization initiator in optical layers composition is preferably more than 0.5 mass parts relative to photopolymerizable compound 100 mass parts and below 10.0 mass parts.By making the content of polymerization initiator within the scope of this, fully can guarantee firmly to be coated with performance, and solidification can be suppressed to hinder.

As the raw material in optical layers composition containing proportional (solid constituent), be not particularly limited, be usually preferably more than 5 quality % and below 70 quality %, be more preferably more than 25 quality % and below 60 quality %.

As above-mentioned levelling agent, such as, silicone oil, fluorine class surfactant etc. can avoid optical layers to form Bei Nade eddy structure, therefore preferably.When being coated with the resin combination drying that contain solvent, in film, producing surface tension difference etc. in film coated surface and inner face, in film, cause most convection current thus.The structure produced by this convection current is called as Bei Nade eddy structure, becomes the reason occurring the problem such as orange peel, coating defects in formed optical layers.

Above-mentioned shellfish Nader eddy structure likely makes the concavo-convex of the surface of optical layers become excessive.When using above-mentioned levelling agent, this convection current can be prevented, therefore, can not only obtain there is no defect, uneven optical layers, and easily the concaveconvex shape on the surface of optical layers be regulated.

As the preparation method of above-mentioned optical layers composition, as long as each uniform composition can be mixed and is not particularly limited, such as, the known devices such as paint shaker, ball mill, kneader, mixer can be used to carry out.

After the surperficial coated optical layer composition of above-mentioned Mght-transmitting base material, be transported to the optical layers composition dries in order to make painting membranaceous and in the section heated, make optical layers composition dries by various known method, solvent is evaporated.At this, by the solvent atmosphere concentration etc. of the wind speed of selective solvent relative evaporation speed, solid component concentration, coating fluid temperature, baking temperature, dry wind, drying time, arid region, the state of aggregation of particulate, distribution can be regulated.

Particularly by selecting drying condition to regulate the method for the distribution of particulate easy thus preferred.

Such as, to slow down rate of drying by reducing baking temperature and/or reducing dry wind speed, thus, particulate becomes and more easily condenses, therefore, it is possible to easily form the wide shape in concavo-convex large and concavo-convex interval.

As concrete baking temperature, be preferably 30 ~ 120 DEG C, dry wind speed is preferably 0.2 ~ 50m/s, by carrying out 1 time or repeatedly carried out the drying process of suitable adjustment within the scope of this, the distribution of particulate can be adjusted to desired state.

In addition, when making optical layers composition dries, penetrate into the penetrating solvents evaporation in Mght-transmitting base material, but photopolymerizable compound remains in Mght-transmitting base material.

Then, to being coated with the light such as membranaceous optical layers composition irradiation ultraviolet radiation, making photopolymerizable compound be polymerized (being cross-linked), making optical layers composition solidify thus, forming optical layers, formed simultaneously and be mixed in region.

When using ultraviolet as light when making above-mentioned optical layers composition solidify, the ultraviolet etc. sent by ultrahigh pressure mercury lamp, high-pressure sodium lamp, low pressure mercury lamp, carbon arc lamp, xenon arc lamp, metal halide lamp etc. can be utilized.In addition, as ultraviolet wavelength, the wave band of 190 ~ 380nm can be used.As the concrete example of electronic radial source, can enumerate croft-Wa Erdun (Cockcroft-Walton) type of examining, model De Graff type, resonance transformer type, insulating core transformer type or linear pattern, the various electron ray accelerators of that rice (Dynamitron) type, high-frequency type etc.

It should be noted that, also can form the optical layers with special male and fomale(M&F) by using photopolymerizable compound and solvent-dry type resin as the material forming resin glue.

Specifically, such as, use the optical layers composition containing photopolymerizable compound, solvent-dry type resin and particulate, on Mght-transmitting base material, formed the film of optical layers composition by method same as described above, make optical layers composition solidify as described above.

When share photopolymerizable compound and solvent-dry type resin as when forming the material of above-mentioned resin glue, compared with only using the situation of photopolymerizable compound, viscosity can be improved, in addition, cure shrinkage (polymerization shrinkage) can be reduced, therefore, when drying and when solidifying, the male and fomale(M&F) of optical layers can not be followed the shape of particulate and be formed, and can form special male and fomale(M&F).Wherein, the concaveconvex shape of the male and fomale(M&F) of optical layers is subject to the impact of the thickness of optical layers etc., therefore, even if when utilizing such method to form optical layers, certainly also need suitably to regulate the thickness etc. of optical layers.

In addition, in the present invention, as long as above-mentioned optical layers meets above-mentioned formula (1) and formula (2), both can be then 1 Rotating fields, also can be the sandwich construction of more than 2 layers, in addition, in the present invention, as long as above-mentioned optical layers meets the above-mentioned half-peak breadth of surface elevation distribution, the mean curvature of concave-convex surface, then both can be 1 Rotating fields, also can be the sandwich construction of more than 2 layers.

Specifically, optical layers can for by surface being 2 Rotating fields that the substrate buckle layer of male and fomale(M&F) is formed with the surface conditioning layer be formed on substrate buckle layer.

Above-mentioned substrate buckle layer can be optical layers.

Above-mentioned surface conditioning layer be for landfill exist on the surface of above-mentioned substrate buckle layer fine concavo-convex obtain level and smooth male and fomale(M&F) and/or, layer for regulating the concavo-convex interval, size etc. that exist on the surface of buckle layer.The surface of above-mentioned surface conditioning layer is formed as male and fomale(M&F), and the male and fomale(M&F) of this surface conditioning layer forms special male and fomale(M&F).Wherein, when optical layers is sandwich construction, manufacturing process becomes complicated, and in addition, the management of manufacturing process may be more difficult compared with during 1 Rotating fields, and therefore preferably optical layers is 1 Rotating fields.

Concavo-convex from the view point of adjustment, the thickness of above-mentioned surface conditioning layer is preferably more than 0.5 μm and less than 20 μm.The upper limit of the thickness of surface conditioning layer is more preferably less than 12 μm, more preferably less than 8 μm.The lower limit of the thickness of surface conditioning layer is preferably more than 3 μm.

The above-mentioned optical layers be made up of substrate buckle layer and surface conditioning layer can use substrate buckle layer composition and surface conditioning layer composition as optical layers composition, is formed by following method.

As above-mentioned substrate buckle layer composition, the composition same with the optical layers composition illustrated in the part of above-mentioned optical layers composition can be used.In addition, as surface conditioning layer composition, the composition at least containing the photopolymerizable compound same with the photopolymerizable compound illustrated in the part of above-mentioned resin glue can be used.Surface conditioning layer composition, can containing the levelling agent, solvent etc. same with the levelling agent illustrated in the part of above-mentioned optical layers composition, solvent except containing except photopolymerizable compound.

Formed above-mentioned comprise the optical layers of substrate buckle layer and surface conditioning layer time, first, on Mght-transmitting base material, coat substrates buckle layer composition, Mght-transmitting base material is formed the film of substrate buckle layer composition.

Then, after this dried coating film, to light such as film irradiation ultraviolet radiations, make photopolymerizable compound be polymerized (being cross-linked), make substrate buckle layer composition solidify thus, form substrate buckle layer.

Then, coating surface regulating course composition on substrate buckle layer, forms the film of surface conditioning layer composition.Then, after this dried coating film, to light such as film irradiation ultraviolet radiations, make photopolymerizable compound be polymerized (being cross-linked), make surface conditioning layer composition solidify thus, form surface conditioning layer.Thus, even if do not use the particulate forming loose condensed matter, the optical layers with special male and fomale(M&F) can also be formed.Wherein, the concaveconvex shape of the male and fomale(M&F) of optical layers is also subject to the impact of the drying condition of film and the thickness of substrate buckle layer and surface conditioning layer etc., therefore, even if when forming optical layers by such method, certainly also need suitably to regulate the drying condition of film and the thickness etc. of substrate buckle layer and surface conditioning layer.

The full light transmittance of above-mentioned blooming is preferably more than 85%.When full light transmittance is more than 85%, on surface blooming being assembled to image display device, color reprodubility and visuality can be improved further.Above-mentioned full light transmittance is more preferably more than 90%.Full light transmittance can use haze meter (in village, color technical institute manufactures, production code member: HM-150) to be measured by the method based on JISK7361.

In the surface of above-mentioned blooming, form the concavo-convex three-dimensional average slope angle θ a on this surface _3Dbe preferably more than 0.12 ° and less than 0.5 °, be more preferably more than 0.15 ° and less than 0.4 °.

In the surface of above-mentioned blooming, the concavo-convex average peak interval Smp forming this surface is preferably more than 0.05mm and below 0.3mm, is more preferably more than 0.10mm and below 0.25mm.

In the surface of above-mentioned blooming, the concavo-convex arithmetic average roughness Ra forming this surface is preferably more than 0.01 μm and less than 0.11 μm, is more preferably more than 0.035 μm and less than 0.08 μm.

In the surface of above-mentioned blooming, 10 the concavo-convex mean roughness Rz forming this surface are preferably more than 0.10 μm and less than 0.30 μm, are more preferably more than 0.12 μm and less than 0.28 μm.

Above-mentioned " θ a _3D", " Smp ", " Ra " and " Rz " the three-dimensional roughness curved surface that can be obtained by the mensuration by contact surface roughness meter or non-contact surface roughmeter (such as, interference microscope, Laser Scanning Confocal Microscope, atomic force microscope etc.) calculates.The data of above-mentioned three-dimensional roughness curved surface are represented by the height being configured to the position of cancellate point and this point with interval d in reference field (make laterally for x-axis, be longitudinally y-axis).

That is, by x-axis direction i-th, the height of the position (hereinafter referred to as (i, j)) of a jth point is set to Z on y-axis direction _i,jtime, arbitrary position (i, j), x-axis direction calculates relative to the slope S y of y-axis as follows relative to the slope S x of x-axis, y-axis direction.

Sx＝(Z _i+1,j-Z _i-1,j)/2d

Sy＝(Z _i,j+1-Z _i,j-1)/2d

In addition, (i, j) is calculated by following formula relative to the slope S t of reference field.

[several 3]

$St=\sqrt{{\mathrm{Sx}}^2+{\mathrm{Sy}}^2}$

Further, tan is passed through at the angle of inclination of (i, j) ^-1(St) calculate.

From simplicity, above-mentioned three-dimensional roughness curved surface preferably uses interference microscope to measure.As such interference microscope, such as, can enumerate " NewView " series etc. that Zygo company manufactures.

Further, above-mentioned three-dimensional average slope angle θ a _3Dcalculated by the mean value at the angle of inclination of each point.

In addition, the above-mentioned concavo-convex average peak interval Smp in the present invention obtains as follows.

By using above-mentioned three-dimensional roughness curved surface be set to Ps higher than the part of being surrounded by region in the part of reference field as the number at a peak during peak, the area measuring region entirety (reference field) is set to A time, Smp is calculated by following formula.

[several 4]

$Smp=\sqrt{\frac{A}{Ps}}$

In addition, the Ra as two dimension roughness parameter recorded in JISB0601:1994 is carried out three-dimensional expansion and obtains by the above-mentioned concavo-convex arithmetic average roughness Ra in the present invention, orthogonal axis X, Y-axis are set in reference field, roughness curved surface is set to Z (x, y), when the size of reference field is set to Lx, Ly, arithmetic average roughness Ra is calculated by following formula.

[several 5]

$Ra=\frac{1}{A}{\&Integral;}_0^{Lx}{\&Integral;}_0^{Ly}\left|Z(x,y)\right|dxdy$

A＝Lx×Ly

In addition, above-mentioned Z is used _i,jtime, above-mentioned concavo-convex arithmetic average roughness Ra is calculated by following formula.

[several 6]

$Ra=\frac{1}{N}\underset{i,j}{\overset{N}{\&Sigma;}}\left|Z_{i,j}\right|$

N: always count

The Rz as two dimension roughness parameter recorded in JISB0601:1994 is carried out three-dimensional expansion and obtains by above-mentioned 10 the mean roughness Rz in the present invention.

Namely, reference field is 360 degree radially arranges many straight lines passed through from the center of this reference field to enlist the services of FR mode, obtain the cross section curve based on each straight cuts by three-dimensional roughness curved surface, obtain 10 mean roughness on this cross section curve (from the highest summit according to the mean value of the peak heights of order from high to low to the 5th with from the darkest the lowest point according to the mean value sum of the paddy degree of depth of order from deep to shallow to the 5th).In multiple 10 mean roughness so obtained upper several 50% is averaged, calculates 10 mean roughness Rz thus.

In addition, from the view point of blooming of the present invention can more suitably prevent from shining upon and the generation of Newton ring, the generation of watermark, above-mentioned optical layers is preferably laminated with the formation of low-index layer on the buckle layer that surface has concaveconvex shape.

As above-mentioned buckle layer, the buckle layer formed by the composition same with the optical layers containing above-mentioned resin glue and particulate and method can be enumerated.

Above-mentioned low-index layer is the layer playing following effect: when reflection occurs on the surface of blooming the light (such as fluorescent light, natural light etc.) from outside, reduce this reflectivity.As low-index layer, preferably by 1) resin, 2 containing the low-refraction such as silicon dioxide, magnesium fluoride particle) as the fluorine-type resin, 3 of low refractive index resin) fluorine-type resin, 4 containing silicon dioxide or magnesium fluoride) low-refraction such as silicon dioxide, magnesium fluoride material film etc. in any one form.About the resin beyond fluorine-type resin, the resin same with the resin glue forming above-mentioned optical layers can be used.

In addition, above-mentioned silicon dioxide is preferably hollow silica particles, and the manufacture method that such hollow silica particles such as can be recorded by the embodiment of Japanese Unexamined Patent Publication 2005-099778 publication makes.

The refractive index of these low-index layers is preferably less than 1.45, is particularly preferably less than 1.42.

In addition, the thickness of low-index layer does not limit, and usually suitably sets in the scope about 30nm ~ 1 μm.

In addition, above-mentioned low-index layer is that individual layer can obtain effect, but for the object regulated lower minimum reflectivity or higher minimum reflectivity, also can arrange the low-index layer of more than 2 layers.When above-mentioned the low-index layer of more than 2 layers is set, preferably make the refractive index of each low-index layer and thickness have difference.

As above-mentioned fluorine-type resin, the polymerizable compound at least in the molecule containing fluorine atom or its polymkeric substance can be used.As polymerizable compound, be not particularly limited, such as, preferably there is the compound of the solidification reactivity groups such as the functional group utilizing ionizing ray to be cured, the polar group carrying out heat curing.In addition, also can for having the compound of these reactive groups concurrently simultaneously.Relative to this polymerizable compound, polymkeric substance is the compound completely without above-mentioned reactive group etc.

As the above-mentioned polymerizable compound with the functional group utilizing ionizing ray to be cured, the fluorochemical monomer with ethylenic unsaturated link can be widely used.More specifically, fluoroolefins (such as fluorothene, vinylidene fluoride, tetrafluoroethene, hexafluoropropylene, perfluorobutadiene, perfluor-2,2-dimethyl-1,3-dioxole etc.) can be illustrated.As the fluorochemical monomer with (methyl) acryloxy, also has (methyl) acrylic acid 2, 2, 2-trifluoro ethyl ester, (methyl) acrylic acid 2, 2, 3, 3, 3-five fluorine propyl ester, (methyl) acrylic acid 2-(perfluoro butyl) ethyl ester, (methyl) acrylic acid 2-(perfluoro hexyl) ethyl ester, (methyl) acrylic acid 2-(perfluoro capryl) ethyl ester, (methyl) acrylic acid 2-(perfluoro decyl) ethyl ester, α-trifluoromethyl acrylate methyl esters, α-trifluoromethyl acrylate ethyl ester etc. has (methyl) acrylate compounds of fluorine atom in the molecule, be the fluoro-alkyl of 1 ~ 14, fluorinated polyfunctional (methyl) acrylate compounds etc. of fluoro naphthenic base or fluorianted alkylene and at least 2 (methyl) acryloxies containing the carbon number with at least 3 fluorine atoms in the molecule.

As the above-mentioned polar group carrying out heat curing, such as, be preferably the hydrogen bonds such as hydroxyl, carboxyl, amino, epoxy radicals and form group.These groups not only with the excellent adhesion of film, and also excellent with inorganic ultramicronized compatibilities such as silicon dioxide.As the polymerizable compound with Thermocurable polar group, such as, can enumerate 4-fluorothene-perfluoroalkyl vinyl ether multipolymer; Fluorothene-hydro carbons vinyl ether co-polymer; The fluorine richness thing etc. of each resin such as epoxy, polyurethane, cellulose, phenol, polyimide.

As the above-mentioned polymerizable compound of polar group having the functional group that utilizes ionizing ray to be cured concurrently and carry out heat curing, can illustrate: the part of acrylic or methacrylic acid and complete fluoroalkyl, alkenyl ester, aryl ester class, wholly or in part fluorinated vinyl ethers, wholly or in part fluorinated vinyl ester class, wholly or in part fluorinated vinyl ketone etc.

In addition, as fluorine-type resin, such as, can enumerate following resin.

Containing the above-mentioned monomer of fluorine-containing (methyl) acrylate compounds or the polymkeric substance of monomer mixture with the polymerizable compound of ionizing ray curability group of at least one; The multipolymer of not (methyl) acrylate compounds of contain fluorine atoms at least one in above-mentioned fluorine-containing (methyl) acrylate compounds and (methyl) methyl acrylate, (methyl) ethyl acrylate, (methyl) propyl acrylate, (methyl) butyl acrylate, (methyl) 2-ethylhexyl acrylate equimolecular; The homopolymer of the fluorochemical monomer such as fluorothene, vinylidene fluoride, trifluoro-ethylene, chlorotrifluoroethylene, 3,3,3-trifluoro propenes, 1,1,2-tri-chloro-3,3,3-trifluoro propenes, hexafluoropropylene or multipolymer etc.Also can be used in containing silicone ingredients in these multipolymers containing organosilicon vinylidene fluoride copolymer.As silicone ingredients in this case, can illustrate: (gathering) dimethyl siloxane, (gathering) di-ethyl siloxane, (gathering) diphenyl siloxane, (gathering) methyl phenyl siloxane, alkyl-modified (gathering) dimethyl siloxane, containing azo group (gathering) dimethyl siloxane, dimethyl organosilicon, phenyl methyl organosilicon, alkyl-aralkyl modified organosilicon, fluorine organosilicon, organic silicon modified by polyether, fatty acid ester modified organic silicon, hydrogeneous poly-methylsiloxane, containing silanol group organosilicon, containing alkoxyorganosilicon, containing phenylol organosilicon, acrylic modified organosilicon, acryl-modified silicone resin, amino-modified silicone, carboxyl acid modified organosilicon, carbinol-modified organosilicon, epoxy modified silicone, sulfhydryl modified organosilicon, fluorine richness organosilicon, organic silicon modified by polyether etc.Wherein, preferably there is the silicone ingredients of dimethyl siloxane structural.

In addition, the non-polymer be made up of following compound or polymkeric substance also can be used as fluorine-type resin.That is, can use: make to have in molecule and in the fluorochemicals of at least 1 isocyanate group and molecule, there are at least 1 amino, hydroxyl, carboxyl etc. and react with the compound of the functional group of isocyanates radical reaction and the compound obtained; The fluorine-containing polyvalent alcohols such as fluorine-containing polyether glycol, fluorine-containing alkyl polyols, fluorine-containing polyester polyol, fluorine-containing 6-caprolactone modified polyalcohol are reacted and the compound etc. that obtains with the compound with isocyanate group.

In addition, also can be together used in combination by each resin glue of recording in above-mentioned optical layers and the above-mentioned polymerizable compound with fluorine atom, polymkeric substance.In addition, can suitably use for making the hardening agent of the solidifications such as reactive group, for improving various adjuvants, the solvent of coating or imparting soil resistance.

In the formation of above-mentioned low-index layer, preferably make the agent of interpolation low-refraction and resin etc. and the viscosity of low-index layer composition that formed in the scope of 0.5 ~ 5mPas (25 DEG C), preferably 0.7 ~ 3mPas (25 DEG C) that can obtain preferred coating.The optical layers of luminous ray excellence can be realized, and, can be formed evenly and without the film of crawling, and, the low-index layer that adaptation is excellent especially can be formed.

The solidification means of resin can be identical with the solidification means illustrated in above-mentioned optical layers.When in order to be cured process utilize heater means, preferably add in fluorine-type resin composition and produce such as free radical by heating thus cause the thermal polymerization of the polymerization of polymerizable compound.

Thickness (nm) d of low-index layer _apreferably meet following formula (A):

d _A＝mλ/(4n _A)(A)

(in above-mentioned formula,

N _arepresent the refractive index of low-index layer,

M represents positive odd number, preferably represents 1,

λ is wavelength, is preferably the value within the scope of 480 ~ 580nm).

In addition, in the present invention, from the view point of antiradar reflectivity, preferred low-index layer meets following formula (B):

120<n _Ad _A<145(B)。

According to the present invention, when the transmission image sharpness of the blooming using 0.125mm wide light comb to measure being set to C (0.125), the transmission image sharpness of the blooming using 0.25mm wide light comb to measure being set to C (0.25), blooming meets above-mentioned formula (1) and formula (2), therefore, even if blooming has more than 0% and low total mist degree of less than 5% and have more than 0% and the low internal haze of less than 5%, based on above-mentioned reason, also can suppress dazzle and suppress to shine upon and watermark.

In addition, according to the present invention, when the value of half-peak breadth of the surface elevation distribution on the surface of blooming, the mean curvature of above-mentioned concave-convex surface meet above-mentioned specific numerical range, the concaveconvex shape on the surface of blooming becomes specific concaveconvex shape, therefore, even if blooming has more than 0% and low total mist degree of less than 5% and have more than 0% and the low internal haze of less than 5%, based on above-mentioned reason, also can suppress dazzle and control watermark.

At this, total haze value and internal haze value be as blooming entirety measure time value.

It should be noted that, above-mentioned total haze value and internal haze value can use haze meter (HM-150, in village, color technical institute manufactures) to be measured by the method based on JISK7136.

Specifically, haze meter is used to measure total haze value of blooming according to JISK7136.

Then, on the surface of blooming, paste triacetyl cellulose base material (Fuji Photo Film Co., Ltd. manufactures, TD60UL) by transparent optical bonding coat.

Thus, the concaveconvex shape on the surface of blooming collapses, and the surface of blooming becomes smooth.

Then, in this condition, use haze meter (HM-150, in village, color technical institute manufactures) to measure haze value according to JISK7136, obtain internal haze value thus.

Internal haze when this internal haze is the concaveconvex shape on the surface of non-Additional optical film.

In the display device of band contact panel of the present invention, total haze value of blooming is preferably less than 1%, is more preferably more than 0.3% and less than 0.5%.

Internal haze value is preferably essentially 0%.

At this, " internal haze value is essentially 0% " is not limited to the situation that internal haze value is entirely 0%, even if its implication comprise internal haze value be greater than 0% but still in the scope of error at measurment, internal haze value can substantially be considered as 0% scope (such as, the internal haze value of less than 0.3%).

When total haze value of above-mentioned blooming be more than 0% and less than 5%, internal haze value be more than 0% and less than 5%, the surface haze value of blooming is more than 0% and less than 5%.

The surface haze value of blooming is preferably more than 0% and less than 1%, is more preferably more than 0% and less than 0.3%.

Surface haze value is only caused by the concaveconvex shape on the surface of blooming, by deducting internal haze value from total haze value, can obtain the surface haze value only caused by the concaveconvex shape on the surface of blooming.

Use average primary particle diameter for more than 1nm and the inorganic oxide particle of below 100nm (such as, fumed silica) when forming optical layers as above-mentioned particulate, can obtain there is lower total haze value (such as, total haze value of less than 1%) and the blooming of lower internal haze value (such as, being essentially the internal haze value of 0%).Namely, total mist degree of optics stacked film and internal haze are the ratio of the transmitted light departing from more than 2.5 ° among the transmitted light transmitted through blooming due to forward scattering from incident light, therefore, to depart from the ratio of the transmitted light of more than 2.5 ° from incident light if can reduce, then total haze value and internal haze reduce.On the other hand, average primary particle diameter is that the inorganic oxide particle of below 100nm does not condense for block and forms the condensed matter loosened, therefore, through light not easily diffusion in optical layers of optical layers in optical layers.Therefore, when using average primary particle diameter for more than 1nm and the inorganic oxide particle of below 100nm forms optical layers, the generation of the transmitted light departing from more than 2.5 ° from incident light can be suppressed, thereby, it is possible to obtain total haze value and the lower blooming of internal haze value.

Only caused by inorganic oxide particle at male and fomale(M&F) concavo-convex of above-mentioned optical layers, when being formed, easily formed and can obtain having gently and male and fomale(M&F) concavo-convex uniformly, namely there is the little concavo-convex male and fomale(M&F) of curvature of antireflection and anti-watermark.Therefore, it is possible to obtain total haze value and internal haze value low and the blooming of dazzle can be suppressed further.

According to the present invention, total haze value of blooming is more than 0% and less than 5%, and internal haze value is more than 0% and less than 5%, therefore, it is possible to suppress the reduction of brightness or light transmission.In addition, the diffusion of the image light of the inside of blooming can be suppressed, therefore, the situation that a part of image light becomes parasitic light can not occur, result, there is not the possibility that dark contrast reduces, in addition, also there is not image blurring possibility.Thereby, it is possible to above-mentioned blooming being assembled into the Horizontal number of pixels such as small type mobile devices, 4K2K (Horizontal number of pixels 3840 × Vertical number of pixels 2160) that superelevation becomes more meticulous is use in the meticulous image display device of superelevation of more than 3000.

According to the present invention, blooming possesses the optical layers with male and fomale(M&F), therefore, it is possible to suppress, at the interface of Mght-transmitting base material and optical layers, the light reflected and the interference that the light reflected occurs at the male and fomale(M&F) of optical layers occur.Thereby, it is possible to suppress the generation of interference fringe.In addition, when define be mixed in region, the reflection at the interface in Mght-transmitting base material and optical layers can be suppressed, therefore, it is possible to suppress the generation of interference fringe further.

Only caused by inorganic oxide particle at male and fomale(M&F) concavo-convex of above-mentioned optical layers, when being formed, also easily make the concavo-convex angle of inclination of formation male and fomale(M&F) can not become large.Thus, also can not there is the excessive diffusion of extraneous light, therefore, it is possible to suppress the reduction of bright contrast.In addition, can also prevent image light from becoming parasitic light, therefore, good dark contrast can also be obtained.In addition, owing to having the normal reflection composition of appropriateness, therefore, when showing motion video, the shining upon of image, brightness strengthen, and can obtain sense of quivering.Thereby, it is possible to obtain having excellent contrast concurrently and the black coloured silk sense of sense of quivering.

It should be noted that, by meeting the blooming of above-mentioned formula (1) and (2), the method improving dazzle and watermark can also be provided.

In addition, the half-peak breadth distributed by the surface elevation meeting the surface of above-mentioned blooming is more than 200nm and the mean curvature of concave-convex surface is 0.30mm ^-1following blooming, can also provide the method improving dazzle and watermark.

It is use in the meticulous image display device of superelevation of more than 3000 that above-mentioned blooming such as can be assembled into the Horizontal number of pixels such as 4K2K (Horizontal number of pixels 3840 × Vertical number of pixels 2160).As image display device, such as, can enumerate liquid crystal display (LCD), CRT display (CRT), plasma scope (PDP), electroluminescent display (ELD), Field Emission Display (FED), contact panel, panel computer, Electronic Paper etc.

Above-mentioned image display device is preferably the liquid crystal display that Horizontal number of pixels is more than 3000.Image display device is made up of than the liquid crystal panel possessing blooming of back light unit closer to observer side with being configured in back light unit.As back light unit, known back light unit can be used.As above-mentioned backlight, also quantum dot LED can be used.

The effect of invention

Blooming of the present invention is formed with specific concaveconvex shape, therefore, it is possible to fully suppress the generation of dazzle, can obtain the display image of high-quality.

In addition, the display device of band contact panel of the present invention blooming with the surface of contact panel subtend on be formed with specific concaveconvex shape, therefore, it is possible to fully suppress the generation of watermark and dazzle, the display image of high-quality can be obtained.

Therefore, blooming of the present invention can be applicable to being applied to CRT display (CRT), liquid crystal display (LCD), plasma scope (PDP), electroluminescent display (ELD), Field Emission Display (FED), Electronic Paper, panel computer etc.

Accompanying drawing explanation

Fig. 1 is the sectional view schematically showing blooming of the present invention.

Fig. 2 is the schematic diagram representing the situation using the transmission image sharpness of transmission image sharpness determinator to blooming to measure.

Fig. 3 is the sectional view of the display device schematically showing band contact panel of the present invention.

Fig. 4 represents that the schematic diagram of the situation of reflection occurs the light incided in the second method of the display device of band contact panel of the present invention.

Fig. 5 is the surface distributed curve of blooming of the present invention.

Embodiment

Content of the present invention is illustrated by following embodiment, but content of the present invention be can't help these embodiments and carried out limited explanation.State as long as no Te Do, then " part " and " % " is quality criteria.

(embodiment 1)

(making of blooming)

Prepare Mght-transmitting base material (tri cellulose acetate membrane, thickness 40 μm, Konica Minolta company manufacture, KC4UAW), be coated with the optical layers composition of composition as follows at the one side of this Mght-transmitting base material, form film.

Then, for formed film, with the flow velocity of 0.2m/s, the dry air of 50 DEG C is circulated 30 seconds, then, make the dry air of 70 DEG C circulation circulation within 30 seconds, make it dry with the flow velocity of 10m/s further, make the solvent in film evaporate thus.

Then, use ultraviolet lamp (FusionUVSystems Japanese firm manufactures, light source H bulb), be 100mJ/cm with accumulated light under nitrogen atmosphere (below oxygen concentration 200ppm) ²mode irradiation ultraviolet radiation, make curing of coating, thus formed thickness 5.0 μm (during solidifications) optical layers, be made into blooming.

(optical layers composition)

(embodiment 2)

Except making the condition of cure of film for make ultraviolet accumulated light for 50mJ/cm ²mode carry out irradiation to make beyond curing of coating, form buckle layer in the same manner as the optical layers of embodiment 1.

Be coated with low-index layer composition as follows on the surface of formed buckle layer, form film.

Then, for formed film, with the flow velocity of 0.2m/s, the dry air of 40 DEG C is circulated 15 seconds, then, with the flow velocity of 10m/s, the dry air of 40 DEG C is circulated further and within 30 seconds, make it dry, make the solvent in film evaporate thus.

Then, use ultraviolet lamp (FusionUVSystems Japanese firm manufactures, light source H bulb), be 100mJ/cm with accumulated light under nitrogen atmosphere (below oxygen concentration 200ppm) ²mode irradiation ultraviolet radiation, make curing of coating, form the low-index layer of 0.1 μm of thickness (during solidification) thus, form the optical layers of the formation that there is buckle layer and be layered in the low-index layer on this buckle layer.Thus, the blooming of embodiment 2 is made into.

(low-index layer composition)

(embodiment 3)

Being 0.8 mass parts except making the combined amount of the silicon dioxide microparticle in optical layers composition, making the drying condition of film be after the dry air of 70 DEG C being circulated 15 seconds with the flow velocity of 1.0m/s, make except the dry air of 70 DEG C circulates 30 seconds, to make blooming similarly to Example 1 with the flow velocity of 10m/s further.

(embodiment 4)

Except thickness when making the solidification of optical layers is except 4.5 μm, make blooming similarly to Example 1.

(embodiment 5)

Being after the dry air of 70 DEG C being circulated 15 seconds with the flow velocity of 1.0m/s except making the drying condition of film, with the flow velocity of 10m/s, the dry air of 70 DEG C being circulated 30 seconds further, and thickness when making the solidification of optical layers is beyond 4.5 μm, makes blooming similarly to Example 3.

(embodiment 6)

Except organic granular (the acrylic-styrene copolymer particle containing 1.0 mass parts in optical layers composition, mean grain size: 2.0 μm, refractive index: 1.55, ponding changes into product industrial group and manufactures), and make the drying condition of film be after the dry air of 70 DEG C being circulated 15 seconds with the flow velocity of 1.0m/s, make beyond the dry air of 70 DEG C circulates 30 seconds, to make blooming similarly to Example 1 with the flow velocity of 10m/s further.

(comparative example 1)

The combined amount of the silicon dioxide microparticle in optical layers composition is made to be 1.0 mass parts, make organic granular (the acrylic-styrene copolymer particle containing 3.0 mass parts in optical layers composition simultaneously, mean grain size: 2.0 μm, refractive index: 1.55, ponding changes into product industrial group and manufactures), the drying condition of film is made to be after the dry air of 70 DEG C being circulated 15 seconds with the flow velocity of 0.2m/s, with the flow velocity of 10m/s, the dry air of 70 DEG C is circulated 30 seconds further, the thickness during solidification of optical layers is made to be 4.0 μm, in addition, make blooming similarly to Example 1.

(comparative example 2)

Except not coordinating except silicon dioxide microparticle in optical layers composition, make blooming similarly to Example 1.

< prevents the evaluation > of shining upon property

The blooming made in each embodiment and comparative example is pasted on black acrylic resin plate to make the mode that male and fomale(M&F) is surface by clear binder.Under bright light environments from distance about 2m by this sample of visualization, whether obtain anti-the shining upon property of shining upon unnoticed degree of the background of observer and observer according to following benchmark evaluation.

Zero: shine upon not noticeable

×: clearly observe and shine upon

The presence or absence > of < watermark

The blooming made in each embodiment and comparative example is pasted on black acrylic resin plate to make the mode that male and fomale(M&F) is surface by clear binder.

In addition, be 0.7mm at thickness and be of a size of the two ends Continuous pressing device for stereo-pattern of the glass plate of 10cm × 10cm.Then, in the mode making blooming and glass plate separate, the face being pasted with adhesive tape of glass plate and blooming are configured in mode facing with each other.Space between the surface of blooming and glass plate be spaced apart 0.1mm.Then, under the state of laminated glass that press...withes one's finger, irradiate light from the sodium vapor lamp be configured in glass, investigate whether confirm watermark.Metewand is as follows.Show the result in table 1.

◎: unconfirmed to watermark.

Zero: observe watermark slightly, but be in unquestioned level.

×: confirm watermark clearly.

The mensuration > of < transmission image sharpness

For each blooming obtained in embodiment and comparative example, following mensuration transmission image sharpness.Show the result in table 1.

First, set-up dirgram image sharpness analyzer (model: ICM-1T, SUGATESTINSTRUMENTS company manufactures).

Then, arranged in the mode making triacetyl cellulose resin film side and be positioned at the light source side of image definition analyzer by each blooming of embodiment and comparative example, the determination method according to the image definition of the transmission beam method based on JISK7374 measures transmission image sharpness.As light comb, use the light comb that 0.125mm is wide, 0.25mm is wide.Then, obtain the transmission image sharpness (C (0.25)) using 0.25mm wide light comb to measure and use the wide light of 0.125mm to comb the difference (C (0.25)-C (0.125)) of the transmission image sharpness (C (0.125)) measured.In addition, for for reference, 0.5mm is wide, 1.0mm is wide, 2.0mm is wide light comb is used to determine the transmission image sharpness of each blooming of embodiment and comparative example as described above.

< appraisal of glare (1) >

For each blooming obtained in embodiment and comparative example, the glass surface bonding agent not being formed with matrix of the black matrix" (thickness of glass 0.7mm) of the face not being formed with optical layers of blooming and 350ppi is fitted.For the sample obtained like this, white area source (LIGHTBOX that HAKUBA manufactures, mean flow rate 1000cd/m are set in black matrix" side ²), make it produce dazzle in analog thus.CCD camera (KP-M1, C joint, extension ring: PK-11A Nikon, camera lens: 50mm, F1.4sNIKKOR) is used to take from blooming side it.The distance of CCD camera and blooming is set as 250mm, regulates the focusing of CCD camera to make it focus on blooming.By using the image of CCD camera shooting to import in personal computer, use image processing software (ImageProPlusver.6.2; MediaCybernetics company manufactures) analysis is carried out as follows.First, from the image imported, select the evaluation position of 200 × 160 pixels, be converted to the GTG of 16 bytes in this evaluation position.

Then, from the enhancing option of optical filter order, select low pass filter, use optical filter 3 × 3, under the condition of number of times 3, intensity 10.Thus, the composition removing of black matrix pattern will be come from.

Then, planarization is selected, in background: under the condition of dark, object width 10, carry out shadow correction.

Then, use contrast strengthen order with contrast: 96, brightness: 48 carry out contrast strengthen.Obtained image is converted to 8 byte GTGs, to 150 × 110 pixels wherein, calculates the deviation of the value of each pixel with standard deviation value, thus dazzle is quantized.The dazzle value that this quantizes is less, can say that dazzle is fewer.Show the result in table 1.

< appraisal of glare (2) >

For each blooming obtained in embodiment and comparative example, evaluate dazzle as follows.By brightness 1500cd/m ²lamp box (white area source), the black matrix" glass of 350ppi, blooming according to the state overlapping successively from below of this order, 15 experimenters are carrying out visual valuation at distance about 30cm place from upper and lower, the various angle in left and right.Judge that whether dazzle is noticeable, evaluate according to following benchmark.Show the result in table 1.

◎: answer as good people is more than 13 people

Zero: answer as good people is 10 ~ 12 people

△: answer as good people is 7 ~ 9 people

×: answer as good people is below 6 people

The total mist degree of <, internal haze, Surface haze measure >

For each blooming obtained in above-described embodiment and comparative example, following mensuration total mist degree, internal haze, Surface haze.Show the result in table 2.

First, haze meter (HM-150, in village, color technical institute manufactures) is used to measure total haze value of blooming according to JISK7136.

Then, triacetyl cellulose base material (Konica Minolta company manufactures, KC4UAW) is pasted on the surface of optical layers by transparent optical bonding coat.Thus, the concaveconvex shape of the male and fomale(M&F) of optical layers is collapsed, the surface of blooming becomes smooth.In this condition, use haze meter (HM-150, in village, color technical institute manufactures) to measure haze value according to JISK7136, obtain internal haze value.Then, from total haze value, deduct internal haze value, obtain surface haze value thus.

< three-dimensional average slope angle θ a _3Dmensuration >

The surface of each blooming obtained in embodiment and comparative example, the three-dimensional average slope angle θ a of following mensuration _3D.Show the result in table 2.

The surface of the side contrary with forming irregular surface of each blooming is pasted on glass plate by clear binder and makes sample, white interference microscope (manufacture of NewView7300, Zygo company) is used to carry out mensuration, the analysis of the surface configuration of blooming under the following conditions.It should be noted that, mensuration, analysis software use the MicroscopeApplication of MetroProver8.3.2.

(condition determination)

Object lens: 50 times

Amplify: 1 times

Measure region: 545 μm × 545 μm

Resolution (interval of every 1): 0.44 μm

(analysis condition)

Remove: smooth

Optical filter: high pass

Filter types: Gauss's batten

Low wavelength: 250 μm

High wavelength: 3 μm

Remove spike: open

Peek height (xRMS): 2.5

It should be noted that, low wavelength is equivalent to the cutoff λ c in roughness parameter.

Then, above-mentioned analysis software (MetroProver8.3.2-MicroscopeApplication) is used to demonstrate " Ra " on SlopeMagMap picture, using the θ a of its numerical value as blooming _3D.

The mensuration > of <Smp, Ra, Rz

Utilization calculates above-mentioned three-dimensional average slope angle θ a _3Dtime the surface profile data that obtains on SurfaceMap picture, demonstrate " Ra ", " SRz " with identical analysis condition, using respective numerical value Ra, Rz as blooming.

Then, in above-mentioned SurfaceMap picture, demonstrate " SaveData " button, preserve the three-dimension curved surface coarseness data after analyzing.Then, AdvancedTextureApplication is utilized to read above-mentioned preservation data and apply following analysis condition.

(analysis condition)

High FFT optical filter: close

Low FFT optical filter: close

Remove: smooth

Then, demonstrate Peak/Valleys picture, counted the number at peak by " PeaksStats ".Wherein, in order to remove inapparent peak, by area be the area (125 μm × 125 μm × π) of the circle using low wavelength as diameter more than 1/10000 and highly for Rtm more than 1/10 peak as count target.It should be noted that, Rtm can from " Roughness/WavinessMap " reads picture, represents the mean value of the maximum height in each region all measured when region segmentation is 3 × 3.Then, utilize above-mentioned method, namely calculate Smp based on following formula.Show the result in table 2.

[several 7]

$Smp=\sqrt{\frac{A}{Ps}}$

[table 1]

[table 2]

	Total mist degree	Internal haze	Surface haze	θa3D[°]	Smp[mm]	Ra[μm]	Rz[μm]
								Embodiment 1	0.3	0.2	0.1	0.26	0.182	0.059	0.19
Embodiment 2	0.3	0.2	0.1	0.28	0.122	0.046	0.16
								Embodiment 3	0.3	0.2	0.1	0.30	0.150	0.057	0.19
Embodiment 4	0.3	0.2	0.1	0.18	0.122	0.039	0.12
								Embodiment 5	0.3	0.2	0.1	0.28	0.128	0.052	0.18
Embodiment 6	1.5	1.3	0.2	0.30	0.111	0.049	0.19
								Comparative example 1	3.2	2.5	0.7	0.52	0.098	0.064	0.27
Comparative example 2	0.2	0.2	0.0	0.10	0.032	0.001	0.02

As shown in Table 1 and Table 2, each evaluation of anti-the shining upon property of the blooming of embodiment, watermark, dazzle (1), (2) is excellent, and in addition, each value of total mist degree, internal haze, Surface haze is also enough low.

On the other hand, the difference of the value of the C (0.25) of the blooming of comparative example 1 and the value of C (0.125) is little, and the concaveconvex shape on optical layers surface is mild, and the evaluation of dazzle is poor.In addition, the value of the C (0.125) of the blooming of comparative example 2 is large, and the difference of the value of C (0.25) and the value of C (0.125) is little, and the evaluation of anti-shining upon property and watermark is poor.

The half-peak breadth > of < surface elevation distribution

The surface of the side contrary with the surface being formed with optical layers of each blooming obtained in embodiment and comparative example is pasted on glass plate by clear binder and makes sample, white interference microscope (manufacture of NewView7300, Zygo company) is used to obtain the surface distributed curve of blooming under the following conditions.

It should be noted that, mensuration, analysis software use the MicroscopeApplication of MetroProver8.3.2.

(condition determination)

Object lens: 10 times

Amplify: 1 times

Measure region: 2.71mm × 2.71mm

Resolution (interval of every 1): 2.18 μm

(analysis condition)

Remove: nothing

Optical filter: band is logical

Filter types: Gauss's batten

Low wavelength: 800 μm

High wavelength: 25 μm

Remove spike: open

Peek height (xRMS): 2.5

It should be noted that, low wavelength is the wavelength of long wavelength cutoff optical filter, and high wavelength is equivalent to the wavelength of short wavelength's cutoff filter.

Then, above-mentioned analysis software (MetroProver8.3.2-MicroscopeApplication) is used to demonstrate SurfaceMap picture, to make interval width show histogram for the mode of about 20nm in above-mentioned picture, obtain the histogram data of surface elevation distribution.

Read by obtained histogram data the height of the distribution of its peak position, the width of the distribution of the position of half height, as the half-peak breadth of surface elevation distribution.

It should be noted that, in the calculating of half-peak breadth, the straight-line interpolation passing through the value of each group of obtained histogram data makes curve of approximation, calculates half-peak breadth by this curve.

The mean curvature > of < concave-convex surface

From the surface distributed curve obtained as described above, in the x-direction for these 3 points of point before and after each point and its, calculate curvature according to above formula, and calculate the mean value of curvature a little, calculate the mean curvature of concave-convex surface thus.

About the blooming made in each embodiment and comparative example, the presence or absence of the half-peak breadth distributed by surface elevation, the mean curvature of concave-convex surface, watermark, appraisal of glare (1), (2), the always result of mist degree, internal haze, Surface haze, three-dimensional average slope angle θ a3D, " Smp ", " Ra " and " Rz " are shown in Table 3.

[table 3]

As shown in table 3, each evaluation of the watermark of the blooming of embodiment 1 ~ 6, dazzle (1), (2) is excellent, and in addition, each value of total mist degree, internal haze, Surface haze is also enough low.

On the other hand, the mean curvature of the surface unevenness profile of the blooming of comparative example 1 is large, and the lens effect caused by surface unevenness profile increases, and the evaluation of dazzle is poor.

In addition, the half-peak breadth of the surface elevation distribution of the blooming of comparative example 2 is little, and the evaluation of watermark is poor.

[industrial applicibility]

Because blooming of the present invention has above-mentioned formation, therefore, it is possible to suppressing the generation of shining upon, fully suppressing while Newton ring dazzle, the display image of high-quality can be obtained.In addition, because the display device of band contact panel of the present invention has above-mentioned formation, therefore, it is possible to fully suppress the generation of watermark and dazzle, the display image of high-quality can be obtained.

Therefore, the display device of band contact panel of the present invention can be applicable to being applied to CRT display (CRT), liquid crystal display (LCD), plasma scope (PDP), electroluminescent display (ELD), Field Emission Display (FED), Electronic Paper, panel computer etc.

[explanation of symbol]

11 bloomings

12 Mght-transmitting base material

13 optical layers

14 concaveconvex shapes

100 transmission image sharpness determinators

101 light sources

102 slits

103,104 lens

105 light combs

106 optical receivers

The display device of 30 band contact panels

31 bloomings

32 Mght-transmitting base material

33 optical layers

34 concaveconvex shapes

35 contact panels

43 optical layers

44 concaveconvex shapes

45 contact panels

46 gaps

Claims (9)

1. a blooming, it has be laminated with the formation that surface has the optical layers of concaveconvex shape on Mght-transmitting base material, it is characterized in that,

Total haze value is more than 0% and less than 5%, and internal haze value is more than 0% and less than 5%,

When the transmission image sharpness using 0.125mm wide light comb to measure being set to C (0.125), the transmission image sharpness using 0.25mm wide light comb to measure being set to C (0.25), meet following formula (1) and formula (2)

C(0.25)-C(0.125)≥2％(1)

C(0.125)≤64％(2)。

2. a blooming, it has be laminated with the formation that surface has the optical layers of concaveconvex shape on Mght-transmitting base material, it is characterized in that,

The half-peak breadth of the surface elevation distribution on the surface of described blooming is more than 200nm,

The mean curvature of concave-convex surface is 0.30mm ^-1below.

3. blooming as claimed in claim 2, wherein, total haze value of blooming is more than 0% and less than 5%, and the internal haze value of described blooming is more than 0% and less than 5%.

4. blooming as claimed in claim 1, wherein, total haze value is more than 0% and less than 1%, and internal haze value is essentially 0%.

5. the blooming as described in claim 1,2,3 or 4, wherein, optical layers contains resin glue and particulate.

6. blooming as claimed in claim 5, wherein, particulate is inorganic oxide particle.

7. blooming as claimed in claim 6, wherein, the average primary particle diameter of inorganic oxide particle is more than 1nm and below 100nm.

8. blooming as claimed in claims 6 or 7, wherein, inorganic oxide particle is that the inorganic oxide particle of hydrophobization process has been carried out on surface.

9. the display device with contact panel, it has the formation blooming described in claim 1,2,3,4,5,6,7 or 8 and contact panel subtend configured, and it is characterized in that,

Described blooming and described contact panel configure with the optical layers in described blooming and described contact panel mode subtend facing with each other under the state each other with gap.