CN101285899A - Optical film possessing surface structure - Google Patents
Optical film possessing surface structure Download PDFInfo
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- CN101285899A CN101285899A CNA2007100911438A CN200710091143A CN101285899A CN 101285899 A CN101285899 A CN 101285899A CN A2007100911438 A CNA2007100911438 A CN A2007100911438A CN 200710091143 A CN200710091143 A CN 200710091143A CN 101285899 A CN101285899 A CN 101285899A
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- blooming
- surface structure
- peak
- photocontrol
- height
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Abstract
The invention relates to an optical film with a surface structure, comprising a base material. A surface of the base material contains a plurality of optical control components which are almost arranged lengthwise in parallel; and the crest height among the plurality of the optical control components changes periodically and space between troughs changes correspondingly, thereby effectively reducing optical dispersion phenomenon between two overlapping optical films and the occurrence probability of overlapping moire.
Description
Technical field
The present invention is relevant blooming, especially relevant back light system or other blooming with plural prism columns structure that needs that is used for LCD (LCD, LiquidCrystal Display).
Background technology
See also shown in Figure 1.General backlight liquid crystal display system comprises cold cathode fluorescent lamp (CCFL) 11, light guide plate (LGP) 12, following diffusion sheet (Bottom diffuser) 13, concentration piece (Prismsheet) 14, goes up diffusion sheet (Top diffuser) 15 and 16 compositions of reflecting plate (Reflector).
See also shown in Figure 2.Leg-of-mutton prism columns (Prism rod) 141 and 142 of base materials (Substrate) that known concentration piece 14 is arranged by a plurality of parallel longitudinals are formed.Prism columns 141 is incorporated into a side of base material 142.Height, the width of each water chestnut mirror post 141 are identical, and the ridge height of prism columns 141 is constant, move towards to be straight line, and the inclined-plane of crest line both sides is symmetrical.
See also shown in Figure 3.The optical path pattern of concentration piece 14 has three kinds:
1, (TRI Recycle) reclaimed in total reflection:
2, birefringence reclaims (2
NdReflection Recycle):
After the refraction of light 144 via two groups of prism columns 141, be recycled to light source direction behind again, continue diffusion and propagate utilization; And
3, directly refraction (Directed Reflective):
See also shown in Figure 4.Above-mentioned concentration piece 14 with prism columns 141 that plural parallel longitudinal rule arranges when upper layer of material film such as diffusion sheet 15 or another concentration piece is repeatedly put on one in its top, can produce following problem:
1, the phenomenon of optical dispersion takes place easily.
2, the repeatedly phenomenon of line takes place easily.
3, have the sticking problem of being stained with between the last diffusion sheet 15 on concentration piece 14 and upper strata.
4, concentration piece 14 is stained with sticking zone 151, albomaculatus phenomenon when observing with great visual angle with last diffusion sheet 15.
5, concentration piece 14 directly contacts easy scratch upper layer of material film with upper layer of material film such as last diffusion sheet 15 in the peak of being stained with sticking zone 151 (Peak).
United States Patent (USP) the 5th, 919, the blooming of No. 551 a kind of varied pitch structures that disclose (Variablepitch structured optical film) comprises the first group of prism columns that has first kind of peak separation (Peak pitch) at least between three adjacent prisms posts, and second group of prism columns; The peak separation of first group of prism columns is different from the peak separation of second group of prism columns, to reduce the visibility of Moore interference fringe (Moire interferencepatterns).
Summary of the invention
In order to make blooming have new structure, the phenomenon of the optical dispersion and the line that changes takes place in minimizing blooming easily when changing mutually with other material membrane, and proposition the present invention.
For achieving the above object, the optical dispersion and the phenomenon person of line repeatedly take place repeatedly the time in order to reduce blooming and other material membrane in blooming with surface structure provided by the invention mutually, comprise a base material, can supply light to wear to penetrate by; One surface of this base material includes plural number vertically near the plural photocontrol assembly that is arranged in parallel; These photocontrol assemblies have the peak respectively; Has paddy respectively between these adjacent peaks; Has the paddy spacing respectively between these adjacent paddy; These peaks have the summit angle respectively; These paddy have the angle, the lowest point respectively; Wherein: the height at the peak of these photocontrol assemblies is periodic variation.
Described blooming with surface structure, wherein, the height at the peak of these photocontrol assemblies is chord wave type to be changed.
Described blooming with surface structure, wherein, the paddy spacing between these paddy is the geometric ratio variation with the height change at peak.
Described blooming with surface structure, wherein, the summit angle of these photocontrol assemblies all equates.
Described blooming with surface structure, wherein, the angle, the lowest point of these photocontrol assemblies all equates.
Described blooming with surface structure, wherein, any two peak-to-peak differences in height are between 5 microns to 1 micron in these photocontrol assemblies.
Described blooming with surface structure, wherein, the highest peak is between 1.2 times to 1.05 times of height at minimum peak in these peaks.
Described blooming with surface structure, wherein, the height change cycle at these peaks comprises 40～400 peaks approximately.
Described blooming with surface structure, wherein, the height at the peak of these photocontrol assemblies is the pendulum shape periodically to be changed, and promptly the middle separated time on two inclined-planes at each peak can periodically tilt with position different one-tenth pendulum shape.
Described blooming with surface structure, wherein, this each peak is obtained by following formula with the value of the difference in height hd at the highest peak:
h
d＝L
r(1-cosθ)，
Wherein, Lr is the height value at the highest peak; θ is the deflection angle at peak.
Described blooming with surface structure, wherein, the paddy spacing between these paddy changes with the height change at peak.
Described blooming with surface structure, wherein, the summit angle of these photocontrol assemblies all equates.
Described blooming with surface structure, wherein, the angle, the lowest point of these photocontrol assemblies changes with the position is different.
Described blooming with surface structure, wherein, the deflection angle difference at any two adjacent peaks is between 0.5 degree is spent to 0.05 in these photocontrol assemblies.
Described blooming with surface structure, wherein, the maximum deflection angle at these peaks is between 15 degree are spent to 2.
Described blooming with surface structure, wherein, the height change cycle at these peaks comprises 40～400 peaks approximately.
Described blooming with surface structure, wherein, the angular range at these summit angles is that 70 degree are between 110 degree.
Described blooming with surface structure, wherein, these summit angles are arc chord angle.
Described blooming with surface structure, wherein, the angular range at these summit angles is that 70 degree are between 110 degree.
Described blooming with surface structure, wherein, this photocontrol assembly is a prism columns.
Blooming with surface structure provided by the invention can reduce the phenomenon that optical dispersion takes place when blooming changes mutually with other material membrane.
Blooming with surface structure provided by the invention can reduce the repeatedly phenomenon of line takes place when blooming changes mutually with other material membrane.
Blooming with surface structure provided by the invention can reduce producing the sticking problem of being stained with when blooming changes mutually with other material membrane.
Blooming with surface structure provided by the invention can reduce other material membrane of blooming and be stained with sticking zone, the phenomenon of generation hickie when wide-angle is observed repeatedly the time mutually.
Blooming with surface structure provided by the invention can reduce the lower surface of blooming scratch upper layer of material film, helps to increase the fine ratio of product of the electronic product that comprises concentration piece and upper layer of material film etc.
Description of drawings
Fig. 1 is the back light system synoptic diagram of known display.
Fig. 2 is the synoptic diagram of known concentration piece.
Fig. 3 is the synoptic diagram of the various light refraction patterns of known concentration piece.
Fig. 4 is the synoptic diagram that known concentration piece supports the upper layer of material film.
Fig. 5 is the diagrammatic cross-section of the blooming of first embodiment of the invention.
Fig. 6 is the diagrammatic cross-section of the blooming of second embodiment of the invention.
Fig. 7 is the synoptic diagram of the state that the pendulum shape periodically tilts for separated time among two inclined-planes at peak of explanation second embodiment of the invention.
Fig. 8 is the diagrammatic cross-section of the blooming of third embodiment of the invention.
Embodiment
Other purpose of the present invention, effect see also drawings and Examples, are described in detail as follows.
See also shown in Figure 5.The present invention has the blooming of surface structure, optical dispersion takes place and the phenomenon person of the line that changes in order to reduce when blooming changes mutually with other material membrane.The blooming with surface structure 30 of first embodiment of the invention comprises: a base material 31, can for light wear penetrate by.One surface of base material 31 includes plural number vertically near the photocontrol assembly that is arranged in parallel, and for example prism columns 32,33,34,35; Each prism columns 32,33,34,35 has two inclined-planes respectively and forms independently peak (Peak) 321,331,341,351; Two inclined-planes between adjacent two peaks 321,331,341,351 form independently paddy (Valley) 36,37,38 respectively; Each peak 321,331,341,351 has peak height 322,332,342,352 respectively; Has paddy spacing 361,371 respectively between the adjacent paddy 36,37,38.
Present embodiment blooming 30 is characterised in that: the summit angle at each peak 321,331,341,351 (Dihedral angle) all equates with the angle, the lowest point of each paddy 36,37,38; The height of the peak height 322,332,342,352 at a plurality of peaks 321,331,341,351 is periodic variation, for example is chord wave type and changes, shown in the dotted line that connects each peak among the figure; And paddy spacing 361,371 variations with peak height between a plurality of paddy 36,37,38 are geometric ratio and change.
Difference in height between the peak height of appointing the two prisms post of present embodiment blooming 30 at 5um (micron) between the 1um; The height of the highest peak height is between 1.2 times to 1.05 times of height of minimum peak height; The height change cycle of peak height comprises 40～400 peaks approximately each time; The angular range at summit angle is that 70 degree are between 110 degree.The paddy spacing of the adjacent two prisms post of present embodiment blooming 30 is about between the 52um to 48um.The summit angle of present embodiment can be arc chord angle, and the peak 521 of each photocontrol assembly 52 of blooming 50 is circular-arc as shown in Figure 8.
When blooming 30 and other the mutual storehouse of blooming, because the height and the paddy spacing 361,371 of the peak height 322,332,342,352 of the prism columns 32,33,34,35 of blooming 30 are periodic variation, make the light that penetrates by the top of blooming 30 be irregular variation, more can not produce optical dispersion and the phenomenon of the line that changes; And because the height of the peak height 322,332,342,352 of the prism columns 32,33,34,35 of blooming 30 is periodic variation, be the design that changes as chord wave type, when another blooming of storehouse of the upper end of blooming 40, the base of another blooming only contacts the peak of the photocontrol assembly of minority protrusion, as the peak 321 of prism columns among Fig. 5 32, and can not contact the peak 341,351 of the prism columns 34,35 of depression; Therefore can significantly reduce the contact area of the blooming of blooming 30 and its upper end, can effectively reduce and the upper strata blooming between be stained with sticking problem, and can reduce and be stained with sticking zone albomaculatus phenomenon when wide-angle is observed, and the peak that can reduce prism columns directly contacts and the probability of scratch upper strata blooming with the upper strata blooming, helps to increase the yield that product is made.
See also shown in Figure 6.The structure of the blooming with surface structure 40 of second embodiment of the invention comprises that a surface of a base material 41 has the vertically approaching photocontrol assembly that is arranged in parallel, and for example prism columns 42,43,44,45; Each prism columns 42,43,44,45 has two inclined-planes respectively and forms an independently peak 421,431,441,451; Two inclined-planes between adjacent two peaks 421,431,441,451 form independently paddy 46,47,48 respectively; The summit angle at each peak 421,431,441,451 all equates.The blooming 40 of second embodiment of the invention is identical with the blooming 30 of aforementioned first embodiment, and the height at each peak 421,431,441,451 is periodic variation, as connecting the dotted line those shown at each peak among the figure; But the height at the peak 421,431,441,451 of present embodiment is as the pendulum shape and periodically changes, be that separated time 422,432,442,452 can become the pendulum shape periodically tilt with the position is different among two inclined-planes at each peak 421,431,441,451, the angle of paddy 46,47,48 also changes with the position is different.
Shown in Fig. 6,7, the middle separated time 422,432,442,452 on two inclined-planes at each peak 421,431,441,451 is the state that the pendulum shape periodically tilts, as a pendulum length is the pendulum of the height Lr at the highest peak, the one end is an axle with specific center C, dangle and be the state of inclination in the periodic both sides to the left and right of its other end, so difference in height hd at each peak and the highest peak, periodically tilt because of being the pendulum shape with separated time 422,432,442,452 wherein, and produce periodic the variation.Each peak can be obtained by following formula with the value of the difference in height hd at the highest peak:
h
d＝L
r(1-cosθ)，
Wherein, Lr is the height value at the highest peak; θ is the deflection angle at peak.
The deflection angle difference at any two adjacent peaks of present embodiment blooming 40 is not more than 0.5 degree between 0.05 degree; The maximum deflection angle at each peak is not more than 15 degree between 2 degree; The height change cycle of peak height comprises 40～400 peaks approximately each time; The angular range at summit angle is that 70 degree are between 110 degree.The summit angle of present embodiment can be arc chord angle.
The height at the peak 421,431,441,451 of the blooming 40 of present embodiment is as the pendulum shape and periodically changes, the middle separated time 422,432,442,452 on two inclined-planes at each peak 421,431,441,451 can periodically tilt with position different one-tenth pendulum shape, the angle of paddy 46,47,48 also changes with the position is different, therefore when blooming 40 and other the mutual storehouse of blooming, more can not produce optical dispersion and the phenomenon of the line that changes; And because the height of the peak height 422,432,442,452 of the prism columns 42,43,44,45 of blooming 40 is periodic variation, be as the pendulum shape and periodically change, when another blooming of storehouse of the upper end of blooming 40, the base of another blooming only contacts the peak of the photocontrol assembly of minority protrusion, as the peak 421 of prism columns among Fig. 6 42, and can not contact the peak 441,451 of the prism columns 44,45 of depression; Therefore can significantly reduce the contact area of the blooming of blooming 40 and its upper end, can effectively reduce and the upper strata blooming between be stained with sticking problem, and can reduce and be stained with sticking zone albomaculatus phenomenon when wide-angle is observed, and the peak that can reduce prism columns directly contacts and the probability of scratch upper strata blooming with the upper strata blooming, helps to increase the yield that product is made.
The height at the peak between the present invention's two adjacent ribs mirror posts is periodic variation and the paddy spacing is corresponding variation, and the summit angle of each photocontrol assembly is the blooming that circular-arc design all is different from above-mentioned United States Patent (USP) and is disclosed.The present invention makes the height at blooming peak be the structure that periodic variation and paddy spacing are corresponding variation, can effectively reduce the two-phase optical dispersion phenomenon of blooming that changes, and can reduce repeatedly the chance that line takes place; And utilize the height at peak of the plural prism columns upper end of blooming to be periodic variation, can reduce the sticking problem of being stained with that produces when blooming is supported in the lower surface of upper layer of material film, and reduce being stained with between blooming and the upper layer of material film and glue the zone, albomaculatus phenomenon when observing with great visual angle, also reduce the chance of peak scratch upper layer of material film, help to increase the fine ratio of product that comprises electronic products such as blooming and upper layer of material film.The summit angle of each prism columns is circular-arc design, more can reduce the chance of peak scratch upper layer of material film.
The above record only for utilizing the embodiment of the technology of the present invention content, anyly is familiar with modification, the variation that the present technique personnel use the present invention to do, and all belongs to the claim scope that the present invention advocates, discloses and be not limited to embodiment.
Claims (20)
- The optical dispersion and the phenomenon person of line repeatedly take place repeatedly the time in order to reduce blooming and other material membrane in 1, a kind of blooming with surface structure mutually, comprise a base material, supply light to wear to penetrate by; One surface of this base material includes plural number vertically near the plural photocontrol assembly that is arranged in parallel; These photocontrol assemblies have the peak respectively; Has paddy respectively between these adjacent peaks; Has the paddy spacing respectively between these adjacent paddy; These peaks have the summit angle respectively; These paddy have the angle, the lowest point respectively; Wherein:The height at the peak of these photocontrol assemblies is periodic variation.
- 2, the blooming with surface structure as claimed in claim 1, wherein, the height at the peak of these photocontrol assemblies is chord wave type to be changed.
- 3, the blooming with surface structure as claimed in claim 2, wherein, the paddy spacing between these paddy is the geometric ratio variation with the height change at peak.
- 4, the blooming with surface structure as claimed in claim 3, wherein, the summit angle of these photocontrol assemblies all equates.
- 5, the blooming with surface structure as claimed in claim 4, wherein, the angle, the lowest point of these photocontrol assemblies all equates.
- 6, the blooming with surface structure as claimed in claim 5, wherein, any two peak-to-peak differences in height are between 5 microns to 1 micron in these photocontrol assemblies.
- 7, the blooming with surface structure as claimed in claim 5, wherein, the highest peak is between 1.2 times to 1.05 times of height at minimum peak in these peaks.
- 8, the blooming with surface structure as claimed in claim 5, wherein, the height change cycle at these peaks comprises 40～400 peaks approximately.
- 9, the blooming with surface structure as claimed in claim 1, wherein, the height at the peak of these photocontrol assemblies is the pendulum shape periodically to be changed, and promptly the middle separated time on two inclined-planes at each peak can periodically tilt with position different one-tenth pendulum shape.
- 10, the blooming with surface structure as claimed in claim 9, wherein, this each peak is obtained by following formula with the value of the difference in height hd at the highest peak:h d＝L r(1-cosθ)，Wherein, Lr is the height value at the highest peak; θ is the deflection angle at peak.
- 11, the blooming with surface structure as claimed in claim 9, wherein, the paddy spacing between these paddy changes with the height change at peak.
- 12, the blooming with surface structure as claimed in claim 11, wherein, the summit angle of these photocontrol assemblies all equates.
- 13, the blooming with surface structure as claimed in claim 12, wherein, the angle, the lowest point of these photocontrol assemblies changes with the position is different.
- 14, the blooming with surface structure as claimed in claim 13, wherein, the deflection angle difference at any two adjacent peaks is between 0.5 degree is spent to 0.05 in these photocontrol assemblies.
- 15, the blooming with surface structure as claimed in claim 13, wherein, the maximum deflection angle at these peaks is between 15 degree are spent to 2.
- 16, the blooming with surface structure as claimed in claim 13, wherein, the height change cycle at these peaks comprises 40～400 peaks approximately.
- 17, as the described blooming with surface structure in arbitrary top in the claim 1 to 16, wherein, the angular range at these summit angles is that 70 degree are between 110 degree.
- 18, as each described blooming with surface structure in the claim 1 to 16, wherein, these summit angles are arc chord angle.
- 19, the blooming with surface structure as claimed in claim 18, wherein, the angular range at these summit angles is that 70 degree are between 110 degree.
- 20, the blooming with surface structure as claimed in claim 18, wherein, this photocontrol assembly is a prism columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100911438A CN101285899A (en) | 2007-04-10 | 2007-04-10 | Optical film possessing surface structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100911438A CN101285899A (en) | 2007-04-10 | 2007-04-10 | Optical film possessing surface structure |
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| CN101285899A true CN101285899A (en) | 2008-10-15 |
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| CNA2007100911438A Pending CN101285899A (en) | 2007-04-10 | 2007-04-10 | Optical film possessing surface structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107783208A (en) * | 2016-08-25 | 2018-03-09 | 奇景光电股份有限公司 | Transparent rib structures, complex optics prism and the method for forming optical prism |
| CN111300933A (en) * | 2018-12-18 | 2020-06-19 | 浙江锦美材料科技有限公司 | Decorative film |
-
2007
- 2007-04-10 CN CNA2007100911438A patent/CN101285899A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107783208A (en) * | 2016-08-25 | 2018-03-09 | 奇景光电股份有限公司 | Transparent rib structures, complex optics prism and the method for forming optical prism |
| CN111300933A (en) * | 2018-12-18 | 2020-06-19 | 浙江锦美材料科技有限公司 | Decorative film |
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Open date: 20081015 |