CN103969720A - Brightness enhancing film, preparing method of brightness enhancing film, and displaying device comprising brightness enhancing film - Google Patents
Brightness enhancing film, preparing method of brightness enhancing film, and displaying device comprising brightness enhancing film Download PDFInfo
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- CN103969720A CN103969720A CN201410227412.9A CN201410227412A CN103969720A CN 103969720 A CN103969720 A CN 103969720A CN 201410227412 A CN201410227412 A CN 201410227412A CN 103969720 A CN103969720 A CN 103969720A
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Abstract
The invention discloses a brightness enhancing film, a preparing method of the brightness enhancing film, and a displaying device comprising the brightness enhancing film. The brightness enhancing film comprises a first film layer, a second film layer and a third film layer, wherein the surface of the first film layer is provided with multiple first prisms in the first direction and a first groove is formed between every two adjacent first prisms; the second film layer is arranged on the surface of the first film layer; one side surface, facing toward the first film layer, of the second film layer is provided with multiple second prisms in the first direction, a second groove is formed between every two adjacent second prisms, and the second prisms are used for stuffing the first grooves; the first prisms are used for stuffing the second grooves; the third film layer is arranged on the surface of the second film layer; one side, deviating from the second film layer, of the third film layer is provided with multiple third prisms in the second direction; a first angle is formed between the first direction and the second direction; the refractive indexes of the first film layer and the third film layer are higher than that of the second film layer. The problems that two common brightness enhancing films need to be arranged perpendicularly in order to achieve the convergence of light rays in two directions, while deviation and prism array damages easily occur in the arrangement of the two films in the prior art are solved.
Description
Technical field
The present invention relates to optically focused technical field, relate in particular to a kind of brightness enhancement film and preparation method thereof, and a kind of display device that comprises this brightness enhancement film.
Background technology
The principle of brightness enhancement film be by reflection, the light outside directive observer visual angle is adjusted to observer visual angle within, thereby improve the utilization factor of luminous energy that light source sends, be widely used at present illuminating module, to be used for converging the light that light source is sent.Especially in the display devices such as monitor, conventional brightness enhancement film is to increase the energy of display brightness and saving display battery apparatus.
Common brightness enhancement film (BEF) is made up of in order to the prism that converges light multiple, and these prisms are arranged according to a direction, forms a prism array.Because prism array is only arranged according to single direction, thereby only converge in a direction after making light pass this brightness enhancement film, therefore, in prior art in order to make light obtain convergence effect in level and vertical direction simultaneously, need to be with two orthogonal placements of common brightness enhancement film.
But two brightness enhancement film, in the process of orthogonal placement, not only easily produce off normal, also can cause the prism array on brightness enhancement film surface to be damaged because of phase mutual friction.
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of brightness enhancement film and preparation method thereof, and a kind of display device that comprises this brightness enhancement film, to solve in prior art the problem that caused off normal and prism array are damaged in two orthogonal put procedure of brightness enhancement film.
For addressing the above problem, the embodiment of the present invention provides following technical scheme:
A kind of brightness enhancement film, comprising:
The first rete, described the first film surface has multiple the first prisms along first direction, between adjacent the first prism, has the first groove;
Be positioned at the second rete of described the first film surface, described the second rete has multiple the second prisms along first direction towards a side surface of described the first rete, between adjacent the second prism, there is the second groove, wherein, described the second prism is filled described the first groove, and described the first prism is filled described the second groove;
Be positioned at the tertiary membrane layer of described the second film surface, the side that described tertiary membrane layer deviates from described the second rete has multiple prisms along second direction;
Wherein, described first direction becomes the first angle with described second direction, and the refractive index of described the first rete is greater than the refractive index of described the second rete, and the refractive index of described tertiary membrane layer is greater than described the second thin-film refractive index.
Preferably, the span of described the first angle is 88 °-92 °, comprises endpoint value.
Preferably, described the first angle is 90 °.
Preferably, to deviate from described the second rete one side surface be surface level to described the first rete; Surface of contact between described tertiary membrane layer and described the second rete is surface level.
Preferably, the refractive index n of described the first rete
1refractive index n with described the second rete
2between meet following relation: 1.3n
2≤ n
1≤ 1.5n
2; The refractive index n of described tertiary membrane layer
3and between the refractive index n of air, meet following relation: 1.3n≤n
3≤ 1.5n.
Preferably, the refractive index n of described the second rete
2span be 1.15-1.18, comprise endpoint value.
Preferably, described the second rete is silicon dioxide optical film.
Preferably, described the first rete is identical with the refractive index of described tertiary membrane layer.
Preferably, the refractive index n of described the first rete
1span be n
1>=1.49.
Preferably, described the first rete is acrylic optical film, and described tertiary membrane layer is acrylic optical film.
A method for making for brightness enhancement film, comprising:
Make the second rete, described the second film surface has multiple the second prisms along first direction, between adjacent the second prism, has the second groove;
One side surface at described the second rete with the second prism forms the first rete, described the first rete has multiple the first prisms along first direction towards a side surface of described the second rete, between adjacent the first prism, there is the first groove, wherein, described the first prism is filled described the second groove, and described the second prism is filled described the first groove;
A side that deviates from described the first rete at described the second rete forms tertiary membrane layer, and the side surface that described tertiary membrane layer deviates from described the second rete has multiple prisms along second direction;
Wherein, described first direction becomes the first angle with described second direction, and the refractive index of described the first rete is greater than the refractive index of described the second rete, and the refractive index of described tertiary membrane layer is greater than described the second thin-film refractive index.
Preferably, a side surface that has the second prism at described the second rete forms the first rete and comprises:
One side surface at described the second rete with the second prism is coated with the first rete, and is cured.
Preferably, a side that deviates from described the first rete at described the second rete forms tertiary membrane layer and comprises:
Deviate from a side surface coating tertiary membrane layer of described the first rete at described the second rete;
Deviate from a side surface rolling prism of described the second rete at described tertiary membrane layer, and be cured.
A kind of display device, comprising: the brightness enhancement film described in above-mentioned any one.
Compared with prior art, technique scheme has the following advantages:
The brightness enhancement film that the embodiment of the present invention provides, comprise: the first rete, be positioned at the second rete of described the first film surface and be positioned at the tertiary membrane layer of described the second film surface, wherein, described the first rete has multiple the first prisms along first direction towards described the second film surface, between adjacent the first prism, there is the first groove, described the second rete has multiple the second prisms along first direction towards described the first film surface, between adjacent the second prism, there is the second groove, described the first prism is filled described the second groove, described the second prism is filled described the first groove, described tertiary membrane layer deviates from described the second film surface and has multiple prisms along second direction, described second direction becomes the first angle with described first direction.As can be seen here, in brightness enhancement film provided by the present invention, comprise multiple film layer structures, and the orientation of prism (being second direction) becomes the first angle with the orientation (being first direction) of described the first prism, thereby can be without second brightness enhancement film of assembling, the light that can simultaneously realize in first direction and second direction converges, and then solved in prior art in order to realize light the converging of both direction simultaneously, and the problem that caused off normal and prism array are damaged in two orthogonal put procedure of brightness enhancement film.
And, because the surface of common brightness enhancement film in prior art has prism array, between adjacent prisms, there is groove, therefore, in two orthogonal put procedure of common brightness enhancement film, below the prism on common brightness enhancement film surface between the chip that produces when can sneaking into dust or cutting, and in the brightness enhancement film that the embodiment of the present invention provides, between described the first rete and described tertiary membrane layer, there is the second rete, described the first rete has multiple along first direction the first prism towards described the second film surface, between adjacent the first prism, there is the first groove, described the second rete has multiple the second prisms along first direction towards described the first film surface, between adjacent the second prism, there is the second groove, and described the first prism is filled described the second groove, described the second prism is filled described the first groove, thereby solve the problem of the chip producing when sneaking into dust or cut in the first groove of the first film surface.
Brief description of the drawings
The structural representation of the brightness enhancement film that Fig. 1 provides for one embodiment of the invention;
The making schematic flow sheet of the brightness enhancement film that Fig. 2-Fig. 5 provides for one embodiment of the invention.
Embodiment
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Just as described in the background section, in prior art for can make light level and vertically both direction obtain convergence effect simultaneously, need to be with two orthogonal placements of common brightness enhancement film.And two brightness enhancement film are in the process of orthogonal placement, not only easily produce off normal, also can cause the prism array on brightness enhancement film surface to be damaged because of phase mutual friction.
It should be noted that, two brightness enhancement film are in put procedure, in the holding plane of described brightness enhancement film, easily there is off normal in directions X and Y-direction justify align position not only, causes part light only by first brightness enhancement film, part light is only by second brightness enhancement film, thereby cause the waste of light, reduce light utilization, and, between the prism direction of two brightness enhancement film also easily there is deviation in angulation, affects spotlight effect.
In view of this, the embodiment of the present invention provides a kind of brightness enhancement film, comprising:
The first rete, described the first film surface has multiple the first prisms along first direction, between adjacent the first prism, has the first groove;
Be positioned at the second rete of described the first film surface, described the second rete has multiple the second prisms along first direction towards a side surface of described the first rete, between adjacent the second prism, there is the second groove, wherein, described the second prism is filled described the first groove, and described the first prism is filled described the second groove;
Be positioned at the tertiary membrane layer of described the second film surface, the side that described tertiary membrane layer deviates from described the second rete has multiple along second direction prism;
Wherein, described first direction becomes the first angle with described second direction, and the refractive index of described the first rete is greater than the refractive index of described the second rete, and the refractive index of described tertiary membrane layer is greater than described the second thin-film refractive index.
Accordingly, the embodiment of the present invention also provides a kind of method for making of brightness enhancement film, comprising:
Make the second rete, described the second film surface has multiple the second prisms along first direction, between adjacent the second prism, has the second groove;
One side surface at described the second rete with the second prism forms the first rete, described the first rete has multiple the first prisms along first direction towards a side surface of described the second rete, between adjacent the first prism, there is the first groove, wherein, described the first prism is filled described the second groove, and described the second prism is filled described the first groove;
A side that deviates from described the first rete at described the second rete forms tertiary membrane layer, and the side surface that described tertiary membrane layer deviates from described the second rete has multiple prisms along second direction;
Wherein, described first direction becomes the first angle with described second direction, and the refractive index of described the first rete is greater than the refractive index of described the second rete, and the refractive index of described tertiary membrane layer is greater than described the second thin-film refractive index.
As can be seen here, in the brightness enhancement film that the embodiment of the present invention provides, comprise multiple film layer structures, and the orientation of prism (being second direction) becomes the first angle with the orientation (being first direction) of described the first prism, thereby can be without second brightness enhancement film of assembling, the light that can simultaneously realize on first direction and second direction both direction converges, and then solved in prior art in order to realize light the converging of both direction simultaneously, and the problem that caused off normal and prism array are damaged in two orthogonal put procedure of brightness enhancement film.
And, in the brightness enhancement film that the embodiment of the present invention provides, between described the first rete and described tertiary membrane layer, there is the second rete, described the first rete has multiple along first direction the first prism towards described the second film surface, between adjacent the first prism, there is the first groove, described the second rete has multiple the second prisms along first direction towards described the first film surface, between adjacent the second prism, there is the second groove, and described the first prism is filled described the second groove, described the second prism is filled described the first groove, thereby solve in two orthogonal put procedure of common brightness enhancement film, below the prism on common brightness enhancement film surface between the problem of the chip that produces when can sneaking into dust or cutting.
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here and implements with multiple, and those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that.Therefore the present invention is not subject to the restriction of following public concrete enforcement.
As shown in Figure 1, the embodiment of the present invention provides a kind of brightness enhancement film, comprising:
The first rete 1, described the first rete 1 surface has multiple the first prisms 11 along first direction, between adjacent the first prism 11, has the first groove;
Be positioned at second rete 2 on described the first rete 1 surface, described the second rete 2 has multiple the second prisms 21 along first direction towards a side surface of described the first rete 1, between adjacent the second prism 21, there is the second groove, wherein, described the second prism 21 is filled described the first groove, and described the first prism 11 is filled described the second groove;
Be positioned at the tertiary membrane layer 3 on described the second rete 2 surfaces, the side that described tertiary membrane layer 3 deviates from described the second rete 2 has multiple prisms 31 along second direction;
Wherein, described first direction becomes the first angle with described second direction, and the refractive index of described the first rete 1 is greater than the refractive index of described the second rete 2, and the refractive index of described tertiary membrane layer 3 is greater than described the second rete 2 refractive indexes.
It should be noted that, the optically focused demand of the device of the first angle that described first direction becomes with second direction and the application of described brightness enhancement film is relevant, when within the scope of 180 ° of the matching requirements of described brightness enhancement film application when optically focused, the value of the first angle that described first direction becomes with second direction is 0 °; When within the scope of 360 ° of the matching requirements of described brightness enhancement film application when optically focused, the value of the first angle that described first direction becomes with second direction is 90 °; In the time of optically focused in other angular ranges of matching requirements of described brightness enhancement film application, described the first angle can also be got other numerical value accordingly, and the present invention does not limit this, specifically depends on the circumstances.
Because brightness enhancement film is comparatively extensive in the application of demonstration field, the present invention is applied in display device as example taking described brightness enhancement film, the brightness enhancement film that the embodiment of the present invention is provided describes in detail, but described brightness enhancement film can also be applied to the field that other need optically focused, and the present invention does not limit this.
Again because demonstration field requires the optically focused within the scope of 360 ° conventionally, therefore in one embodiment of the invention, the span of described the first angle is preferably 88 °-92 °, comprise endpoint value, more preferably, the value of described the first angle is 90 °, thereby shown in ensureing, brightness enhancement film can realize the optically focused within the scope of 360 °, but the present invention does not limit this, as long as described the first angle can make described brightness enhancement film meet the optically focused demand of its applied display device.
On the basis of above-mentioned arbitrary embodiment, in one embodiment of the invention, the side surface that described the first rete 1 deviates from described the second rete 2 is surface level, thereby make to deviate from a side surface vertical sand shooting of described the second rete 2 to the light of described the first rete 1 from described the first rete 1, can enter to greatest extent described the first rete 1.
On the basis of above-mentioned arbitrary embodiment, in another embodiment of the present invention, surface of contact between described tertiary membrane layer 3 and described the second rete 2 is also surface level, thereby makes the light that enters described the second rete 2 can vertically inject described tertiary membrane layer 3, thereby improves light utilization.
On the basis of above-mentioned arbitrary embodiment, in yet another embodiment of the present invention, the refractive index n of described the first rete 1
1refractive index n with described the second rete 2
2between meet following relation: 1.3n
2≤ n
1≤ 1.5n
2thereby, improve the spotlight effect of described second direction; The refractive index n of described tertiary membrane layer 3
3and between the refractive index n of air, meet following relation: 1.3n≤n
3≤ 1.5n, thus described brightness enhancement film spotlight effect in a first direction improved.
On the basis of above-mentioned arbitrary embodiment, in a specific embodiment of the present invention, the refractive index n of described the second rete 2
2span be preferably 1.15-1.18, comprise endpoint value, more preferably, described the second rete 2 is silicon dioxide optical film, but the present invention do not limit this, as long as ensure the refractive index n of described the first rete 1
1refractive index n with described the second rete 2
2between meet following relation: 1.3n
2≤ n
1≤ 1.5n
2thereby, ensure the spotlight effect of described the first rete 1 in second direction.
On the basis of above-mentioned arbitrary embodiment, in a specific embodiment of the present invention, described the first rete 1 is identical with the refractive index of described tertiary membrane layer 3, preferably, and the refractive index n of described the first rete 1
1span be n
1>=1.49, more preferably, described the first rete 1 is acrylic optical film, and described tertiary membrane layer 3 is acrylic optical film, but the present invention do not limit this, as long as ensure the refractive index n of described the first rete 1
1refractive index n with described the second rete 2
2between meet following relation: 1.3n
2≤ n
1≤ 1.5n
2, and the refractive index n of described tertiary membrane layer 3
3and between the refractive index n of air, meet following relation: 1.3n≤n
3≤ 1.5n, thus the spotlight effect of described brightness enhancement film in first direction and second direction ensured.
Accordingly, the display device of the brightness enhancement film providing in a kind of above-mentioned arbitrary embodiment is also provided the embodiment of the present invention, comprising:
The first rete, described the first film surface has multiple the first prisms along first direction, between adjacent the first prism, has the first groove;
Be positioned at the second rete of described the first film surface, described the second rete has multiple the second prisms along first direction towards a side surface of described the first rete, between adjacent the second prism, there is the second groove, wherein, described the second prism is filled described the first groove, and described the first prism is filled described the second groove;
Be positioned at the tertiary membrane layer of described the second film surface, the side that described tertiary membrane layer deviates from described the second rete has multiple prisms along second direction;
Wherein, described first direction becomes the first angle with described second direction, and the refractive index of described the first rete is greater than the refractive index of described the second rete, and the refractive index of described tertiary membrane layer is greater than described the second thin-film refractive index.
Preferably, the span of described the first angle is 88 °-92 °, comprises endpoint value.More preferably, described the first angle is 90 °.
In sum, the brightness enhancement film that the embodiment of the present invention provides and comprising in the display device of this brightness enhancement film, described brightness enhancement film is multiple film layer structure, wherein, described the first rete has multiple the first prisms along first direction towards described the second film surface, described the second rete has multiple the second prisms along first direction towards described the first film surface, described tertiary membrane layer deviates from described the second film surface and has multiple prisms along second direction, described second direction becomes the first angle with described first direction, thereby make brightness enhancement film provided by the present invention without second brightness enhancement film of assembling, the light that can simultaneously realize in two of first direction and second directions converges, and then solve in prior art in order to realize light converging at both direction simultaneously, and the problem that caused off normal and prism array are damaged in two orthogonal put procedure of brightness enhancement film.
And, in the brightness enhancement film that the embodiment of the present invention provides, between described the first rete and described tertiary membrane layer, there is the second rete, described the first rete has multiple along first direction the first prism towards described the second film surface, between adjacent the first prism, there is the first groove, described the second rete has multiple the second prisms along first direction towards described the first film surface, between adjacent the second prism, there is the second groove, and described the first prism is filled described the second groove, described the second prism is filled described the first groove, thereby solve in two orthogonal put procedure of common brightness enhancement film, below the prism on common brightness enhancement film surface between the problem of the chip that produces when can sneaking into dust or cutting.
In addition, the embodiment of the present invention also provides a kind of method for making of brightness enhancement film, and described brightness enhancement film is the brightness enhancement film that above-mentioned arbitrary embodiment provides, and comprising:
As shown in Figure 2, make the second rete 2, described the second rete 2 surfaces have multiple the second prisms 21 along first direction, between adjacent the second prism 21, have the second groove 22;
As shown in Figure 3, a side surface that has the second prism 21 at described the second rete 2 forms the first rete 1, described the first rete 1 has multiple the first prisms 11 along first direction towards a side surface of described the second rete 2, between adjacent the first prism 11, there is the first groove (not shown), wherein, described the first prism 11 is filled described the second groove 22, and described the second prism 21 is filled described the first groove;
As shown in Figure 4 and Figure 5, a side that deviates from described the first rete 1 at described the second rete 2 forms tertiary membrane layer 3, and the side surface that described tertiary membrane layer 3 deviates from described the second rete 2 has multiple prisms 31 along second direction;
Wherein, described first direction becomes the first angle with described second direction, and the refractive index of described the first rete 1 is greater than the refractive index of described the second rete 2, and the refractive index of described tertiary membrane layer 3 is greater than described the second rete 2 refractive indexes.
In one embodiment of the invention, a side surface that has the second prism at described the second rete forms the first rete and comprises: a side surface at described the second rete with the second prism is coated with the first rete, and is cured.It should be noted that, in the present embodiment, the coating of described the first rete and described the first rete curing is preferably to synchronize and carries out.
On the basis of above-described embodiment, in another embodiment of the present invention, as shown in Figure 4 and Figure 5, a side formation tertiary membrane layer 3 that deviates from described the first rete 1 at described the second rete 2 comprises: as shown in Figure 4, deviate from a side surface coating tertiary membrane layer 3 of described the first rete 1 at described the second rete 2; Deviate from a side surface rolling prism 31 of described the second rete 2 at described tertiary membrane layer 3, and be cured.It should be noted that, in the present embodiment, the rolling of described prism and described tertiary membrane layer curing is preferably to synchronize and carries out.
As can be seen here, the method for making of the brightness enhancement film that the embodiment of the present invention provides, technique is simple, and cost is lower.
In sum, the brightness enhancement film that the embodiment of the present invention provides is not only without second brightness enhancement film of assembling, the light that can simultaneously realize in two of first direction and second directions converges, solve in prior art in order to realize light converging at both direction simultaneously, and the problem that caused off normal and prism array are damaged in two orthogonal put procedure of brightness enhancement film, also solve in two orthogonal put procedure of common brightness enhancement film, below the prism on common brightness enhancement film surface between the problem of the chip that produces when can sneaking into dust or cutting, and manufacture craft is simple, cost is lower.
In this instructions, various piece adopts the mode of going forward one by one to describe, and what each part stressed is and the difference of other parts, between various piece identical similar part mutually referring to.
It should be noted that, in this article, the relational terms such as the first and second grades is only used for an entity and another entity to make a distinction, and not necessarily requires or imply the relation or the order that between these entities, have any this reality.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to embodiment illustrated herein, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (14)
1. a brightness enhancement film, is characterized in that, comprising:
The first rete, described the first film surface has multiple the first prisms along first direction, between adjacent the first prism, has the first groove;
Be positioned at the second rete of described the first film surface, described the second rete has multiple the second prisms along first direction towards a side surface of described the first rete, between adjacent the second prism, there is the second groove, wherein, described the second prism is filled described the first groove, and described the first prism is filled described the second groove;
Be positioned at the tertiary membrane layer of described the second film surface, the side that described tertiary membrane layer deviates from described the second rete has multiple prisms along second direction;
Wherein, described first direction becomes the first angle with described second direction, and the refractive index of described the first rete is greater than the refractive index of described the second rete, and the refractive index of described tertiary membrane layer is greater than described the second thin-film refractive index.
2. brightness enhancement film according to claim 1, is characterized in that, the span of described the first angle is 88 °-92 °, comprises endpoint value.
3. brightness enhancement film according to claim 2, is characterized in that, described the first angle is 90 °.
4. brightness enhancement film according to claim 1, is characterized in that, it is surface level that described the first rete deviates from described the second rete one side surface; Surface of contact between described tertiary membrane layer and described the second rete is surface level.
5. brightness enhancement film according to claim 4, is characterized in that, the refractive index n of described the first rete
1refractive index n with described the second rete
2between meet following relation: 1.3n
2≤ n
1≤ 1.5n
2; The refractive index n of described tertiary membrane layer
3and between the refractive index n of air, meet following relation: 1.3n≤n
3≤ 1.5n.
6. brightness enhancement film according to claim 5, is characterized in that, the refractive index n of described the second rete
2span be 1.15-1.18, comprise endpoint value.
7. brightness enhancement film according to claim 6, is characterized in that, described the second rete is silicon dioxide optical film.
8. according to the brightness enhancement film described in claim 6 or 7, it is characterized in that, described the first rete is identical with the refractive index of described tertiary membrane layer.
9. brightness enhancement film according to claim 8, is characterized in that, the refractive index n of described the first rete
1span be n
1>=1.49.
10. brightness enhancement film according to claim 8, is characterized in that, described the first rete is acrylic optical film, and described tertiary membrane layer is acrylic optical film.
The method for making of 11. 1 kinds of brightness enhancement film, is characterized in that, comprising:
Make the second rete, described the second film surface has multiple the second prisms along first direction, between adjacent the second prism, has the second groove;
One side surface at described the second rete with the second prism forms the first rete, described the first rete has multiple the first prisms along first direction towards a side surface of described the second rete, between adjacent the first prism, there is the first groove, wherein, described the first prism is filled described the second groove, and described the second prism is filled described the first groove;
A side that deviates from described the first rete at described the second rete forms tertiary membrane layer, and the side surface that described tertiary membrane layer deviates from described the second rete has multiple prisms along second direction;
Wherein, described first direction becomes the first angle with described second direction, and the refractive index of described the first rete is greater than the refractive index of described the second rete, and the refractive index of described tertiary membrane layer is greater than described the second thin-film refractive index.
12. method for makings according to claim 11, is characterized in that, a side surface that has the second prism at described the second rete forms the first rete and comprises:
One side surface at described the second rete with the second prism is coated with the first rete, and is cured.
13. method for makings according to claim 12, is characterized in that, a side formation tertiary membrane layer that deviates from described the first rete at described the second rete comprises:
Deviate from a side surface coating tertiary membrane layer of described the first rete at described the second rete;
Deviate from a side surface rolling prism of described the second rete at described tertiary membrane layer, and be cured.
14. 1 kinds of display device, is characterized in that, comprising: the brightness enhancement film described in claim 1-10 any one.
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| CN105182613A (en) * | 2015-10-29 | 2015-12-23 | 京东方科技集团股份有限公司 | Optical structure, display substrate and display device |
| WO2018010250A1 (en) * | 2016-07-12 | 2018-01-18 | 上海箩箕技术有限公司 | Optical fingerprint sensor module |
| CN107991809A (en) * | 2017-12-26 | 2018-05-04 | 中航华东光电有限公司 | Narrow frame backlight module |
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Application publication date: 20140806 |