CN201251633Y - Microstructure multifunctional optical diaphragm - Google Patents
Microstructure multifunctional optical diaphragm Download PDFInfo
- Publication number
- CN201251633Y CN201251633Y CNU2008201530363U CN200820153036U CN201251633Y CN 201251633 Y CN201251633 Y CN 201251633Y CN U2008201530363 U CNU2008201530363 U CN U2008201530363U CN 200820153036 U CN200820153036 U CN 200820153036U CN 201251633 Y CN201251633 Y CN 201251633Y
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Abstract
The utility model discloses a microstructure multifunctional optical diaphragm comprising a light inlet face and a light outlet face which are mutually opposite, wherein the light outlet face has a plurality of dimpling structures which are similar to semi-ellipsoidal structures, and comprise a long shaft, a short shaft, a height and four cambered surfaces which connect the long shaft, the short shaft and the height, wherein the four cambered surfaces mutually intersect at four arc lines, the four arc lines intersect at the climax of the dimpling structures, the four cambered surfaces intersects with the light outlet face to form a closed similar semi-ellipsoid, and the long shafts of the dimpling structures are mutually arranged in parallel. The microstructure multifunctional optical diaphragm provided by the utility model effectively integrates utility of various optical diaphragms at present, is beneficial for simplifying structures of backlight modules and optical design, and is convenient for manufacturing and lowering the cost.
Description
Technical field
The utility model relates to a kind of microstructure multifunction optical film diaphragm, particularly a kind of microstructure multifunction optical film diaphragm that is applied to LCD.
Background technology
Liquid crystal in the panel of LCD itself is not had a characteristics of luminescence, therefore for reaching display effect, needs to give the LCD panel provide a planar light source device with the realization Presentation Function, as module backlight (Back LightUnit).Its function is to provide the area source that brightness is abundant and be evenly distributed to the LCD panel.Can be divided into straight-down negative and side-light type according to the ornaments position of light source in module backlight.The basic mechanism of module backlight all is the light that light source sends, and as diffusion, optically focused etc. are to provide uniform surface light source by a series of optical effect.
LCD Technology is at the trend development to large scale and low price, backlight module is also being considered lightweight, slimming, low-power consumption, high brightness and the market demands that reduce cost, blooming piece is as the important materials of module backlight, especially the key factor of cost consideration in the design of backlight module.
Present blooming piece can be divided into two kinds of diffusion sheet and concentration pieces by its optical performance.The effect of diffusion sheet also has the effect of covering except revising the angle that light is advanced for the optical texture that destroys fully reflecting surface, cover light guide plate mesh point and fluorescent tube striated inequality, and the protection prismatic lens is to obtain the effect of module face optical uniformity backlight.The optical parametric of diffusion sheet has comprised thickness, sees through ability and cloudy surface degree etc.Its manufacturing is by using PET or PC base material to apply small acrylic particle.
Prismatic lens is the significant components that promotes positive briliancy, changes direction of light reaching the light harvesting effect, thereby improving brightness, single direction blast about 60%, but two overlapping blasts about 120% of vertical direction, but can the sacrificial section visual angle.
Above blooming piece is owing to the difference of its function and structure, and manufacturing process of being used and equipment all are not quite similar, and have increased the manufacturing cost of diaphragm.
The utility model content
Technical problem to be solved in the utility model provides a kind of microstructure multifunction optical film diaphragm, effectiveness with present dissimilar blooming pieces integrates effectively, help simplifying the structure and the optical design of module backlight, and be convenient to make, reduce cost.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to provide a kind of microstructure multifunction optical film diaphragm, comprise an incidence surface respect to one another and an exiting surface, described exiting surface has a plurality of a plurality of microprotrusion structures that have, it is characterized in that, described microprotrusion structure is similar semielliptical structure, comprise a major axis, one minor axis, one height, and four connection major axis, the cambered surface of minor axis and height, four cambered surfaces intersect each other in four camber lines, article four, camber line intersects at the peak of this microprotrusion structure, four cambered surfaces and described exiting surface intersect, and form the similar semielliptical of sealing, and described a plurality of micro-convex structure major axis are arranged parallel to each other.
In the above-mentioned microstructure multifunction blooming, the span of described major axis is 0.001mm to 2mm, and the span of minor axis is 0.001mm to 0.1mm, and the span of height is 0.001mm to 0.1mm.
In the above-mentioned microstructure multifunction blooming, described incidence surface is a plastic basis material, and described plastic basis material surface includes protective finish.
The utility model contrast prior art has following beneficial effect: the microstructure multifunction optical film diaphragm that the utility model provides both can be used as prismatic lens and had played the light harvesting effect, can be used as diffusion sheet again and play equal light action, effectiveness with present dissimilar blooming pieces integrates effectively, help simplifying the structure and the optical design of module backlight, and be convenient to make, reduce cost.The microstructure multifunction optical film diaphragm that the utility model provides is by adjusting the long axis length of microprotrusion, minor axis length, the parameters such as radius of height and four arc surfaces, obtain different optical effects, can adjust this blooming piece easily as the rate of adding lustre to of prismatic lens and best rising angle scope with as all light rate of diffusion sheet.
Description of drawings
Fig. 1 is the structural representation of the utility model blooming piece when using as prismatic lens.
Fig. 2 is the vertical view of the single microprotrusion structure of the utility model.
Fig. 3 is the major axis side view of the single microprotrusion structure of the utility model.
Fig. 4 is the minor axis side view of the single microprotrusion structure of the utility model.
Fig. 5 is the utility model microprotrusion structure synoptic diagram that is staggered.
Fig. 6 is the utility model microprotrusion structure height synoptic diagram alternately.
Fig. 7 is the utility model microprotrusion structure size synoptic diagram alternately.
Fig. 8 is that the utility model microprotrusion structure blossom type is arranged synoptic diagram.
Fig. 9 is the structural representation of the utility model blooming piece when using as diffusion sheet.
Figure 10 is the utility model blooming piece long axis direction center line surface of intensity distribution.
Figure 11 is the utility model blooming piece short-axis direction center line surface of intensity distribution.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the utility model blooming piece when using as prismatic lens, see also Fig. 1, it is the preferred embodiment of the utility model blooming piece when using as prismatic lens, this blooming piece comprises an incidence surface (figure does not show) and an exiting surface 1 relative with incidence surface, this exiting surface 1 has a plurality of microprotrusion structures 2, and these a plurality of microprotrusion structures are similar semielliptical structure.This incidence surface is a flat surfaces.The ellipsoid structure of projection is the small cellular construction of novel diaphragm for this reason, is different from any microstructure of existing prismatic lens.
The detailed maps of above-mentioned microprotrusion structure please refer to Fig. 2, Fig. 3 and Fig. 4, and each microprotrusion of the present utility model comprises a longitudinal axis L respectively, a minor axis W, a height H, four cambered surfaces that connect longitudinal axis L, minor axis W and height H.Four cambered surfaces, four camber lines that intersect each other, four camber lines intersect at the peak 0 of this microprotrusion.These a plurality of microprotrusion structures 2 are arranged on this exiting surface with certain rule, and the cambered surface at its longitudinal axis L place is parallel to each other.
The shape of a plurality of microprotrusion structures 2 of the utility model blooming piece and the rule of arranging can be carried out different designs.Please refer to Fig. 5, a plurality of microprotrusion structure 2 shapes are identical, and size is identical, and promptly major axis, minor axis, height are all identical with four cambered surfaces, and a plurality of microprotrusion structures 2 are staggered.Please refer to Fig. 6, a plurality of microprotrusion structure 2 shapes are identical, and size is identical, and highly different, promptly two adjacent microprotrusion structures 2 have different height, 2 one-tenth arranged of a plurality of microprotrusion structures.Please refer to Fig. 7, a plurality of microprotrusion structure 2 shapes are identical, highly identical, vary in size, and promptly two adjacent microprotrusion structures 2 have different sizes, 2 one-tenth arranged of a plurality of microprotrusion structures.Please refer to Fig. 8, a plurality of microprotrusion structure 2 shapes are identical, highly identical, vary in size, and become blossom type to arrange.
When above-mentioned blooming piece used as prismatic lens, the span of major axis was 0.1mm to 2mm, and the span of minor axis is 0.001mm to 0.1mm, and the span of height is 0.001mm to 0.1mm.
Fig. 9 is the structural representation of the utility model blooming piece when using as diffusion sheet.Please refer to Fig. 9, a plurality of microprotrusion structure 2 shapes are identical, and size is identical, highly identical, and become arranged, when the utility model blooming piece uses as diffusion sheet, the major axis and the minor axis dimension of described microprotrusion structure 2 are less, generally between 0.001 to 0.1mm.
Figure 10 and Figure 11 are TracePro software optical analogy result, and TracePro is the light simulation software that a cover generally is used for illuminator, optical analysis, radiometric analysis and photometric analysis.Light is vertically injected from incidence surface, and through after the micro-convex structure, light converges to the center, finally, equal height, the concentration ratio of long axis direction is lower than the concentration ratio of short-axis direction, adjust each parameter of micro-convex structure, can obtain the rate of adding lustre to and the best rising angle scope that need.Figure 10 is the normalized curve of central point briliancy with the long axis direction visual angle change, curve Prism is the add lustre to rate curve of the utility model blooming piece during as prismatic lens (Prism), the span of major axis is 0.1mm to 2mm, the span of minor axis is 0.001mm to 0.1mm, and the span of height is 0.001mm to 0.1mm; Curve D iffuser is the add lustre to rate curve of the utility model blooming piece during as diffusion sheet (Diffuser), and the span 0.001 of major axis, minor axis and height is to 0.1mm.Figure 11 is the normalized curve of central point briliancy with the short-axis direction visual angle change.By adjusting blooming piece major and minor axis parameter, curve D iffuser and curve Prism can correspondingly follow adjustment.Therefore a plurality of microprotrusion structural designs of the present utility model are by adjusting the long axis length of microprotrusion, minor axis length, the height and the radius of four cambered surfaces can be adjusted this blooming piece easily as the rate of adding lustre to of prismatic lens and best rising angle scope with as all light rate of diffusion sheet.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection domain of the present utility model is worked as with being as the criterion that claims were defined.
Claims (3)
1, a kind of microstructure multifunction optical film diaphragm, comprise an incidence surface respect to one another and an exiting surface, described exiting surface has a plurality of a plurality of microprotrusion structures that have, it is characterized in that, described microprotrusion structure is similar semielliptical structure, comprise a major axis, one minor axis, one height, and four connection major axis, the cambered surface of minor axis and height, four cambered surfaces intersect each other in four camber lines, article four, camber line intersects at the peak of this microprotrusion structure, four cambered surfaces and described exiting surface intersect, and form the similar semielliptical of sealing, and described a plurality of micro-convex structure major axis are arranged parallel to each other.
2, microstructure multifunction optical film diaphragm according to claim 1 is characterized in that, the span of major axis is 0.001mm to 2mm, and the span of minor axis is 0.001mm to 0.1mm, and the span of height is 0.001mm to 0.1mm.
3, microstructure multifunction optical film diaphragm according to claim 1 and 2 is characterized in that, described incidence surface is a plastic basis material, and described plastic basis material surface includes protective finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201530363U CN201251633Y (en) | 2008-09-12 | 2008-09-12 | Microstructure multifunctional optical diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201530363U CN201251633Y (en) | 2008-09-12 | 2008-09-12 | Microstructure multifunctional optical diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201251633Y true CN201251633Y (en) | 2009-06-03 |
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ID=40747306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201530363U Expired - Fee Related CN201251633Y (en) | 2008-09-12 | 2008-09-12 | Microstructure multifunctional optical diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201251633Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633538A (en) * | 2013-11-14 | 2015-05-20 | 中强光电股份有限公司 | Light adjusting diaphragm and backlight module with the same |
| CN109814185A (en) * | 2019-03-27 | 2019-05-28 | 江苏双星彩塑新材料股份有限公司 | A kind of micro- composite membrane of large scale and preparation method thereof |
-
2008
- 2008-09-12 CN CNU2008201530363U patent/CN201251633Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633538A (en) * | 2013-11-14 | 2015-05-20 | 中强光电股份有限公司 | Light adjusting diaphragm and backlight module with the same |
| US9933133B2 (en) | 2013-11-14 | 2018-04-03 | Coretronic Corporation | Light adjusting sheet and backlight module using the same |
| CN109814185A (en) * | 2019-03-27 | 2019-05-28 | 江苏双星彩塑新材料股份有限公司 | A kind of micro- composite membrane of large scale and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20100912 |