CN101131440B - Optical diaphragm structure with light scattering and concentration function - Google Patents
Optical diaphragm structure with light scattering and concentration function Download PDFInfo
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- CN101131440B CN101131440B CN2006101115243A CN200610111524A CN101131440B CN 101131440 B CN101131440 B CN 101131440B CN 2006101115243 A CN2006101115243 A CN 2006101115243A CN 200610111524 A CN200610111524 A CN 200610111524A CN 101131440 B CN101131440 B CN 101131440B
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- diffusion
- focusing unit
- light
- substrate
- light focusing
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Abstract
The invention relates an optical film structure with the diffusion and spotlight functions. It includes a base sheet and a diffused spotlight layer set on one side of the base sheet. The diffused spotlight layer has plural diffused spotlight units which are set one side of the diffused spotlight layer. The diffused spotlight unit has an ellipse arc surface which has a long axis and a short axis. By the surface curvature, the ratio between the long and short axis and the axial controlling, when the diffused spotlight unit refraction, the horizontal or vertical direction of the optical film has the two functions of spotlight and diffusion.
Description
Technical field
The present invention is relevant for the light diaphragm, especially relevant for having the blooming piece of the diffusion integrated with the dual-use function of optically focused.
Background technology
Disclose a concentration piece 1 among " the Prevention Of GrooveTip Deformation In Brightness Enhancement Film " that international publication number is W096/23649 number shown in the 1st figure, concentration piece 1 comprises a substrate 11 and several prism cylinders 12, and prism cylinder 12 is arranged on the surface of substrate 11.Prism cylinder 12 has the first plane 12a and the second plane 12b.
The optically focused principle of the first plane 12a and the second plane 12b is a utilization prism columns internal refraction, in optically focused brightness peak value can appear in special angle, can produce invalid high angle light leak on the optical application and cause the brightness excessive situation that descends during in visual angle change, and when the backlight module practice, surface and lower surface are respectively placed a diffusion sheet and are made equalizing light rays thereon.
Because the continuous arrangement that is configured to several prism cylinders 12 of concentration piece 1, its all have certain axially, therefore all have certain optically focused direction, actual product then divides horizontal optically focused and vertical angle optically focused, but can't possess simultaneously level and vertical light-focusing function is arranged.Therefore in the use when if level needs optically focused simultaneously with vertical angle, then must horizontal optically focused of use and the concentration piece of a vertical optically focused.And because its drift angle mostly is the acute angle of 90 degree, be subjected to scratch easily,, when using, removed again, so whole cost, the number of working processes and environment are all had great waste so must paste a diaphragm in the surface.
Fig. 2 shows known diffusion sheet 2 structures, it comprises a transparent base 21, upper surface in base material 21 is provided with a diffusion layer 22, lower surface in base material 21 is provided with a reflector plate 23, diffusion layer 22 comprises several diffusion particles 22a and adhering substance 22b, diffusion particle 22a can imbed or protrude from adhering substance 22b, so no matter diffusion particle 22a protrudes or whether imbeds adhering substance 22b, all can form the surface of tool one roughness in diffusion layer 22, when light outwards penetrates via this diffusion layer, can cause the effect of light diffusion, and diffusion particle 22a is the transparent sphere of nature moulding,, after focus, also light can be spread according to lens principle.
Above-described diffusion sheet 2 is based on the light diffusion function, do not have any angle light-focusing function, and it is when being used in backlight module, especially refer to side lamp formula backlight module at mobile computer (NB), because of it is subject to the cold-cathode tube limited amount that can use, the concentration piece that therefore still needs to arrange in pairs or groups uses.
Summary of the invention
Therefore its purpose of the present invention is to provide a blooming piece with optical microstructures, makes it have the dual-use function of diffusion and optically focused simultaneously.
Another object of the present invention is to substitute the use of diffusion sheet and prism concentration piece, the blooming piece that uses many originally is reduced to uses single blooming piece, and then realize the target that reduces cost.
Another object of the present invention is to reduce the use amount of blooming piece, make light obtain minimum loss, and then briliancy is promoted at the shortest light-path.
The optical diaphragm structure of tool of the present invention diffusion and light-focusing function comprises: a substrate has first surface and with respect to the second surface of first surface; And one the diffusion light collecting layer, be arranged at the first surface of this substrate, this diffusion light collecting layer has a plurality of diffusion light focusing unit, each spreads light focusing unit and has a curved surfaces, wherein by changing the curved surfaces shape or in the diffusion light collecting layer, sneaking into diffusion particle, so that this blooming piece has the function of diffusion and optically focused.
Description of drawings
Fig. 1: the schematic isometric of known concentration piece;
Fig. 2: the constructed profile of known diffusion sheet;
Fig. 3: the schematic isometric of the diffusion optically focused diaphragm of first embodiment of the invention;
Fig. 4: the diffusion optically focused diaphragm diagrammatic top view of first embodiment of the invention;
Fig. 5: the diffusion light focusing unit major axis constructed profile among Fig. 3;
Fig. 6: the diffusion light focusing unit minor axis constructed profile among Fig. 3;
Fig. 7: the schematic isometric of the diffusion optically focused diaphragm of second embodiment of the invention;
Fig. 8: the diagrammatic top view of the diffusion optically focused diaphragm of second embodiment of the invention;
Fig. 9: the schematic isometric of the diffusion optically focused diaphragm of third embodiment of the invention;
Figure 10: the constructed profile of the diffusion optically focused diaphragm of third embodiment of the invention.
[figure number explanation]
1 concentration piece, 11 substrates
12 prism cylinder 12a, first plane
12b second plane 2 diffusion sheets
22 diffusion layer 22a diffusion particles
22b adhering substance 23 reflector plates
3 diffusion optically focused diaphragms, 31 substrates
31a substrate upper surface 31b substrate lower surface
32 diffusion light collecting layer 32a diffusion light focusing unit
33 antistatic adhesive layer 7 diffusion optically focused diaphragms
71 substrates, 72 diffusion light focusing unit
73 antistatic adhesive layer 9 diffusion optically focused diaphragms
91 substrates, 92 diffusion light collecting layers
The major axis of 93 antistatic adhesive layer L diffusion light focusing unit
The height of the minor axis H diffusion light focusing unit of W diffusion light focusing unit
Embodiment
For above-mentioned purpose of the present invention, functional character and advantage can be understood by clearer and more definite quilt, hereinafter with the present invention with preferable example, and cooperate appended graphicly, be described in detail below.
Please refer to Fig. 3 and shown in Figure 4, the diffusion optically focused diaphragm 3 of the first embodiment of the present invention, it comprises a substrate 31, diffusion light collecting layer 32 and an antistatic adhesive layer 33, and diffusion light collecting layer 32 has a plurality of diffusion light focusing unit 32a.
This substrate 31 has upper surface 31a, lower surface 31b, can for light wear penetrate by.But diffusion light collecting layer 32 can be coated the surface of substrate 31 by the transparent polyester that ultraviolet light (UV) is solidified, again behind the mould via spreading one tool microstructure, form a plurality of diffusion light focusing unit 32a, produce polymerizing curable manufacturing with irradiating ultraviolet light (UV) line again.
This diffusion light focusing unit 32a belongs to microstructure layer (MicroStructure), is arranged in adjacent and discontinuous mode on the surface of this substrate 31.Shown in the 5th and 6 figure, each spreads light focusing unit 32a ovalize curved surfaces substantially, have a longitudinal axis L and a minor axis W, major axis becomes a ratio with the length of minor axis, and the ratio of its W: L can be 1: 1 to 1: ∞, and preferable ratio is between 1: 1 to 1: 5, long axis direction is same direction, but the major axis of the diffusion light focusing unit 32a that each is adjacent and minor axis be arbitrary proportion then, and arranges preferable 20 to the 80 μ m that can be of minor axis length with random fashion.
Fig. 5 also shows that the surface of the longitudinal axis L direction of diffusion light focusing unit 32a has a globoidal structure, therefore the height H with respect to substrate 51 can change at diverse location, the 6th figure also shows that the surface of the minor axis W direction of diffusion light focusing unit 32a has a globoidal structure, and therefore the height H with respect to substrate 31 can change at diverse location.The preferable altitude range of height H is 25 to 80 μ m.
Because the surface of diffusion light focusing unit 32a has a radian, can form an optical focus diffusion function, by the longitudinal axis L of this diffusion light focusing unit and the variation of minor axis W, the refraction angle of the long axis direction of diffusion light focusing unit is less, and the refraction angle of the short-axis direction of diffusion light focusing unit is bigger, and make long axis direction different with the extent of refraction of short-axis direction, so the emergent ray of short-axis direction has stronger optically focused characteristic, the emergent ray of long axis direction then has stronger diffusion property.Therefore by the setting of control major and minor axis ratio than big and major and minor axis ratio smaller units, can make the axial light of one have light-focusing function, another axial light then has diffusion function,
Please refer to Fig. 7, Fig. 8, it illustrates the diffusion optically focused diaphragm 7 of second embodiment of the invention, different with Fig. 3, Fig. 4 be in, wherein spread light focusing unit 72a along the mutual each other vertical and discontinuous mode random alignment of long axis direction, the optical unit that each is adjacent, its major axis and minor axis then can be arbitrary proportion.
This diffusion optically focused diaphragm 7 is owing to have the diffusion light focusing unit 72a of the long axis direction of vertical and level simultaneously, make level and vertical direction all can have light-focusing function, and can adjust the ratio of the ellipse diffusion light focusing unit 72a of each level and vertical long axis direction according to actual needs, level is controlled with the vertical optically focused and the light ratio of diffusion.
Please refer to Fig. 9, Figure 10, the diffusion optically focused diaphragm 9 of the third embodiment of the present invention, different with Fig. 3, Fig. 4 be in, wherein spread light collecting layer 92 and have integrally formed lens arrangement 92a, it in Fig. 9, Figure 10 is but is not limited to the spherical lens structure, and this lens shape can be the shape as disclosed diffusion light focusing unit among first and second embodiment.These lens are arranged in a surface of substrate 91 in regular turn, and the material of this lens arrangement 92a comprises synthetic resin, wherein mix transparent diffusion particle 92b, it partly buries or is convexly set in this diffusion light collecting layer 92 underground, the refractive index of this diffusion particle 92b is different from the refractive index of lens arrangement 92a, when light passed through, this lens arrangement can give scattering with light.Also be mixed with diffusion particle 92b in the antistatic adhesive layer 93, scattering process can be provided.These structures that comprise diffusion particle 92b also can be applicable to the diffusion light focusing unit of first and second embodiment.
Though the present invention has utilized above-mentioned preferable example to disclose in detail; right its is not in order to limit the present invention; all have the knack of this one the invention; without departing from the spirit and scope of the present invention; can be used as various changes and modification, so protection scope of the present invention is as the criterion when regarding the accompanying claim person of defining as.
Claims (7)
1. the optical diaphragm structure of tool diffusion and light-focusing function comprises:
One substrate has first surface and with respect to the second surface of first surface; And
One spreads light collecting layer, is arranged at the first surface of this substrate, and this diffusion light collecting layer has a plurality of diffusion light focusing unit, and each spreads light focusing unit and has a curved surfaces,
Wherein by changing the curved surfaces shape, so that this blooming piece has the function of diffusion and optically focused;
Wherein this curved surfaces has a major axis and a minor axis, the length ratio of this minor axis and this major axis be greater than 1: 1 smaller or equal to 1: 5, wherein this minor axis length is 20 to 80 μ m;
Wherein these diffusion light focusing unit are along long axis direction, arrange in mode parallel to each other, adjacent and discontinuous, perhaps along long axis direction, be perpendicular to one another, adjacent and discontinuous mode arranges;
Wherein the major axis and the minor axis of each these adjacent diffusion light focusing unit are arbitrary proportion;
Wherein respectively spreading light focusing unit is 25 to 80 μ m with respect to the height of this substrate.
2. optical diaphragm structure as claimed in claim 1 is wherein sneaked into diffusion particle in this diffusion light collecting layer.
3. the optical diaphragm structure of tool diffusion and light-focusing function comprises:
One substrate has first surface and with respect to the second surface of first surface; And
One diffusion light collecting layer, be arranged at the first surface of this substrate, this diffusion light collecting layer has a plurality of diffusion light focusing unit, and each spreads light focusing unit and has a curved surfaces, and in the diffusion light collecting layer, sneak into diffusion particle, so that this blooming piece has the function of diffusion and optically focused;
Wherein this curved surfaces has a major axis and a minor axis, the length ratio of this minor axis and this major axis be greater than 1: 1 smaller or equal to 1: 5, wherein this minor axis length is 20 to 80 μ m;
Wherein these diffusion light focusing unit are along long axis direction, arrange in mode parallel to each other, adjacent and discontinuous, perhaps along long axis direction, be perpendicular to one another, adjacent and discontinuous mode arranges;
Wherein the major axis and the minor axis of each these adjacent diffusion light focusing unit are arbitrary proportion;
Wherein respectively spreading light focusing unit is 25 to 80 μ m with respect to the height of this substrate.
4. as claim 2 or 3 described optical diaphragm structures, wherein the refractive index of this diffusion particle is different with the refractive index of diffusion light focusing unit.
5. as claim 2 or 3 described optical diaphragm structures, wherein this diffusion particle is that the diffusion light collecting layer is buried or be convexly set in to part underground.
6. as claim 1 or 3 described optical diaphragm structures, other comprises an antistatic adhesive layer, is arranged at the second surface of this substrate.
7. optical diaphragm structure as claimed in claim 6 is sneaked into diffusion particle in the wherein antistatic adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101115243A CN101131440B (en) | 2006-08-21 | 2006-08-21 | Optical diaphragm structure with light scattering and concentration function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101115243A CN101131440B (en) | 2006-08-21 | 2006-08-21 | Optical diaphragm structure with light scattering and concentration function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101131440A CN101131440A (en) | 2008-02-27 |
| CN101131440B true CN101131440B (en) | 2010-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101115243A Expired - Fee Related CN101131440B (en) | 2006-08-21 | 2006-08-21 | Optical diaphragm structure with light scattering and concentration function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101131440B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4910842B2 (en) * | 2007-04-02 | 2012-04-04 | ソニー株式会社 | Optical sheet and display device |
| TWI578015B (en) * | 2011-12-23 | 2017-04-11 | 財團法人工業技術研究院 | Flexible substrate and manufacturing method thereof and manufacturing method of package of environmental sensitive electronic element |
| TWI487074B (en) * | 2012-10-22 | 2015-06-01 | Ind Tech Res Inst | Flexible electronic device and manufacturing method of the same |
| CN104633538B (en) | 2013-11-14 | 2017-10-13 | 中强光电股份有限公司 | Light adjusts diaphragm and uses its backlight module |
| CN105005109A (en) * | 2014-04-18 | 2015-10-28 | 博昱科技（丹阳）有限公司 | Light guide sheet and backlight apparatus |
| CN108008475A (en) | 2017-12-08 | 2018-05-08 | 惠州市华星光电技术有限公司 | Diffuser plate and down straight aphototropism mode set |
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2006
- 2006-08-21 CN CN2006101115243A patent/CN101131440B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101131440A (en) | 2008-02-27 |
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Granted publication date: 20100714 Termination date: 20120821 |