CN201166306Y - Diffusion sheet with light gathering function - Google Patents
Diffusion sheet with light gathering function Download PDFInfo
- Publication number
- CN201166306Y CN201166306Y CNU2008200074077U CN200820007407U CN201166306Y CN 201166306 Y CN201166306 Y CN 201166306Y CN U2008200074077 U CNU2008200074077 U CN U2008200074077U CN 200820007407 U CN200820007407 U CN 200820007407U CN 201166306 Y CN201166306 Y CN 201166306Y
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- diffusion sheet
- diffusingsurface
- plane
- prism columns
- crest line
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Abstract
A diffusing plate with a light gathering function is provided, wherein one surface of base material is provided with a plurality of prism pillars, at least one oblique surfaces of partial prism pillars are provided with rugged diffusing surfaces which can be located on any position of the prism oblique surfaces, and the diffusing surfaces are provided with a plurality of concave-convex strips which are irregularly arranged, the strikes of the irregularly arranged concave-convex strips can be perpendicular to, or not perpendicular to or parallel to the chine lines of the prism pillars, and the diffusing surfaces can be utilized to effectively reduce the chromatic dispersion phenomenon of lights and the stripes of atomized prism pillars, to reduce the chance of stripe-overlapping, and to increase production yield.
Description
Technical field
The utility model is relevant blooming, the especially relevant back light system of LCD (LCD, Liquid Crystal Display) or the blooming with a plurality of prism columns structures that other electronic installation needs of being used for.
Background technology
See also shown in Figure 1.General backlight liquid crystal display system comprises CCFL (CCFL) 11, LGP (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.Known concentration piece 14 is to be arranged the prism columns (Prism rod) 141 that section is triangular in shape and 142 compositions of base material (Substrate) by a plurality of parallel longitudinals.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 peak of prism columns 141 (Peak) is highly constant, move towards to be straight line, and the inclined-plane of both sides, peak is symmetrical.Known concentration piece 14 has the surface texture that the prism columns 141 by a plurality of rules constitutes.
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, (2 nd Reflection Recycle) reclaimed in birefringence:
After the refraction of light 144 via two prisms post 141, be recycled to light source direction behind again, continue diffusion and propagate utilization; And
3, directly refraction (Directed Reflective):
When upper layer of material films such as diffusion sheet 15 or another concentration piece on the top of concentration piece 14 stacked, will the phenomenon of optical dispersion and the phenomenon that line takes place to fold easily take place easily.It is comparatively smooth that concentration piece 14 has the one side of a plurality of parallel prism columns again, if during defectiveness, is easier to be found, and is identified as faulty materials.
Multiple concentration piece with light diffusion layer is arranged, for example United States Patent (USP) the 5th, 844, the concentration piece (Prism sheet) that discloses for No. 720, one mask have a plurality of vertically near the Tp post that is arranged in parallel, and its another side has matsurface, produce interference fringe in the time that refracted ray can being avoided, and prevent scratch, and make the brightness homogeneous that reflects concentration piece, help the use of liquid crystal display.And for example the concentration piece of M293442 number announcement of TaiWan, China patent comprises a base material, and a side of this base material comprises a light diffusion layer with recessed or protruding coarse structure, and wherein this light diffusion layer has the diffusance of 5%-90%.
Above-mentioned concentration piece with light diffusion layer mostly makes the concentration piece that completes further make coarse surface layer in its bottom reprocessing, when comparatively taking a lot of work.And it is comparatively smooth that concentration piece has the one side of a plurality of parallel prism columns, if during defectiveness, is easier to be found, and is identified as faulty materials.
The diffusing lens that the TaiWan, China number of patent application that the applicant has applied for is taken off for No. 95133798, be to have the coarse diffusingsurface of strip between the two adjacent prism columns, the light that the diffusingsurface of utilization between the two prisms post diffuses out mixes the light that prism columns penetrates, can effectively reduce the striped of the dispersion phenomenon and the atomizing prism columns of light, and reduce the chance that folded line takes place, and can increase the production yield of concentration piece; The coarse diffusingsurface of the strip prism columns of base material, a plurality of vertical arrangements and strip can be formed in one again, therefore is easier to be made.
The diffusing lens that the TaiWan, China number of patent application that the applicant has applied for is taken off for No. 96108016, the top and/or the dual-side that are the peak of its a plurality of prism columns have rough roughness respectively, are stained with phenomenon sticking, that optical dispersion reaches folded line when diffusing lens is folded mutually with other material membrane to reduce.
But the diffusingsurface that the strip prism columns of above-mentioned base material, a plurality of vertical arrangements and strip are coarse is if want one-body molded comparatively difficulty, usually after this diffusingsurface of slightly making forms prism columns, utilize the surface treatment process of sandblast to form again, need time and the costs made of cost of two kinds of processing procedures.
The utility model content
For the diffusion sheet that makes the tool light-focusing function has new structure, be easier to manufacturedly, and the utility model is proposed.
Main purpose of the present utility model at the diffusion sheet that a kind of tool light-focusing function is provided, is easier to make and can saves manufacturing cost, and can reduce the phenomenon that optical dispersion takes place when diffusion sheet is folded mutually with other material membrane.
Another purpose of the present utility model, at the diffusion sheet that a kind of tool light-focusing function is provided, the striped of aerosolizable prism columns helps to increase the production yield of diffusion sheet and the defective of covering backlight module.
Another purpose of the present utility model at the diffusion sheet that a kind of tool light-focusing function is provided, can reduce the phenomenon that folded line takes place when diffusion sheet is folded mutually with other material membrane.
The utility model provides a kind of diffusion sheet of tool light-focusing function, it is characterized in that, comprises a base material and a plurality of prism columns of vertically arranging strip; One surface of this base material is provided with this a plurality of prism columns; These a plurality of prism columns have crest line, first inclined-plane and second inclined-plane respectively; This crest line places the extreme higher position of this prism columns; This first inclined-plane, this second inclined-plane extend to this substrate by the both sides of this crest line respectively; Have at least an inclined-plane to be provided with rough diffusingsurface in this first inclined-plane of these a plurality of prism columns of part and this second inclined-plane; This diffusingsurface is provided with the concave and convex stripe of a plurality of irregular alignments.
Wherein the width of this diffusingsurface account for this inclined-plane width 2% to 90% between.
Wherein the trend of these a plurality of concave and convex stripes is perpendicular to this crest line.
Wherein the trend of these a plurality of concave and convex stripes is parallel to this crest line.
Wherein the trend of these a plurality of concave and convex stripes is perpendicular to this crest line.
Wherein the trend of these a plurality of concave and convex stripes is parallel to this crest line.
Wherein this diffusingsurface is near this base material.
Wherein this diffusingsurface is near this crest line.
Wherein this diffusingsurface is near this base material.
Wherein this diffusingsurface is near this crest line.
Wherein the width of this diffusingsurface is that random number changes.
Wherein the width of this diffusingsurface is that rule changes.
The beneficial effects of the utility model are:
The diffusion sheet of tool light-focusing function of the present utility model, be easier to make and save manufacturing cost, and can reduce the phenomenon that optical dispersion takes place when diffusion sheet is folded mutually with other material membrane, help to increase the production yield of diffusion sheet and the defective of covering backlight module, can reduce the phenomenon that folded line takes place when diffusion sheet is folded mutually with other material membrane.
Description of drawings
Other purpose of the present utility model, effect and specific embodiment see also drawings and Examples, be described in detail as follows, wherein:
Fig. 1 is the back light system schematic diagram of known display.
Fig. 2 is the schematic diagram of known concentration piece.
Fig. 3 is the schematic diagram of the various light refraction patterns of known concentration piece.
Fig. 4 is the schematic diagram of the diffusion sheet of the utility model first embodiment.
Fig. 5 is the schematic side view of the utility model first embodiment diffusion sheet.
Fig. 6 is the schematic diagram of diffusion light of the diffusion sheet of the utility model first embodiment.
Fig. 7 is the schematic diagram of the diffusion sheet of the utility model second embodiment.
Fig. 8 is the schematic diagram of the diffusion sheet of the utility model the 3rd embodiment.
Fig. 9 is the schematic diagram of the diffusion sheet of the utility model the 4th embodiment.
The primary clustering symbol description
11 ... CCFL
12 ... LGP
13 ... following diffusion sheet
14 ... concentration piece
140 ... vertical axis
141 ... prism columns
142 ... base material
143,144,145,31,32 ... light
15 ... last diffusion sheet
16 ... reflector plate
20,30,40,50 ... diffusion sheet
21,31,41,51 ... base material
22,32,42,52 ... prism columns
221,321,421,521 ... crest line
222,322,422,522 ... first inclined-plane
223,323,423,523 ... second inclined-plane
224,324,424,524 ... diffusingsurface
225,325,425,525 ... concave and convex stripe
The specific embodiment
See also Fig. 4, Fig. 5, shown in Figure 6.The utlity model has the diffusion sheet of light-focusing function, be in order to optical dispersion phenomenon that reduces prism columns and the probability of folding the line generation, and help lifting to produce yield.The diffusion sheet 20 of the utility model first embodiment comprises: a base material 21, can for light wear penetrate by; One surface of base material 21 is provided with the strip prism columns 22 of a plurality of vertical arrangements; Each prism columns 22 has crest line 221, first inclined-plane 222 and second inclined-plane 223 respectively; Crest line 221 places the extreme higher position of prism columns 22; First inclined-plane 222, second inclined-plane 223 extend to substrate 21 by the both sides of crest line 221 respectively; First inclined-plane 222 of part prism columns 22 and/or second inclined-plane 223 are provided with rough diffusingsurface 224 near the bottom of base material 21; Diffusingsurface 224 is provided with the concave and convex stripe 225 of a plurality of irregular alignments; The trend of a plurality of concave and convex stripes 225 is perpendicular to crest line 221.As shown in Figure 5, the width a of diffusingsurface 224 account for first inclined-plane 222 or second inclined-plane 223 width b 2% to 90% between.Diffusion sheet 20 only needs first procedure, forms diffusingsurface 224 when shape forms prism columns 22, can save the time and the cost of manufacturing.
See also shown in Figure 7.The diffusion sheet 30 of the utility model second embodiment also comprises base material 31 and a plurality of prism columns 32.Prism columns 32 has crest line 321, first inclined-plane 322 and second inclined-plane 323.But first inclined-plane 322 of a plurality of prism columns 32 and/or second inclined-plane 323 are provided with rough diffusingsurface 324 near the upper end of crest line 321; Diffusingsurface 324 is provided with the concave and convex stripe 325 of a plurality of irregular alignments; The trend of a plurality of concave and convex stripes 325 is perpendicular to crest line 321.The width of diffusingsurface 324 account for first inclined-plane 322 or second inclined-plane 323 width 2% to 90% between.Diffusion sheet 30 only needs first procedure, forms diffusingsurface 324 when shape forms prism columns 32, can save the time and the cost of manufacturing, and have other function that above-mentioned diffusion sheet 20 is had.
See also shown in Figure 8.The diffusion sheet 40 of the utility model the 3rd embodiment also comprises base material 41 and a plurality of prism columns 42.Prism columns 42 has crest line 421, first inclined-plane 422 and second inclined-plane 423.First inclined-plane 422 of a plurality of prism columns 42 and/or second inclined-plane 423 are provided with rough diffusingsurface 424 near the lower end of base material 41; Diffusingsurface 424 is provided with the concave and convex stripe 425 of a plurality of irregular alignments; But the trend of a plurality of concave and convex stripes 425 is parallel to crest line 421.The width of diffusingsurface 424 account for first inclined-plane 422 or second inclined-plane 423 width 2% to 90% between.Diffusion sheet 40 only needs first procedure, forms diffusingsurface 424 when shape forms prism columns 42, can save the time and the cost of manufacturing, and have other function that above-mentioned diffusion sheet 20 is had.
See also shown in Figure 9.The diffusion sheet 50 of the utility model the 4th embodiment also comprises base material 51 and a plurality of prism columns 52.Prism columns 52 has crest line 521, first inclined-plane 522 and second inclined-plane 523.But first inclined-plane 522 of a plurality of prism columns 52 and/or second inclined-plane 523 are provided with rough diffusingsurface 524 near the upper end of crest line 521; Diffusingsurface 524 is provided with the concave and convex stripe 525 of a plurality of irregular alignments; The trend of a plurality of concave and convex stripes 525 is parallel to crest line 521.The width of diffusingsurface 524 account for first inclined-plane 522 or second inclined-plane 523 width 2% to 90% between.Diffusion sheet 50 only needs first procedure, forms diffusingsurface 524 when shape forms prism columns 52, can save the time and the cost of manufacturing, and have other function that above-mentioned diffusion sheet 20 is had.
Diffusion sheet of the present utility model is to be provided with rough diffusingsurface on the inclined-plane of a plurality of prism columns; The width of diffusingsurface account for the prism columns inclined-plane width 2% to 90% between.The inclined-plane of prism columns can be that the two sides all is provided with diffusingsurface or has only single face that diffusingsurface is arranged.Diffusingsurface can be in arbitrary position on prism inclined-plane, and diffusingsurface is provided with the concave and convex stripe of a plurality of irregular alignments, and the trend of the concave and convex stripe of this irregular alignment can be vertical, non-perpendicular or be parallel to the crest line of prism columns.The width of diffusingsurface can be that random number or rule change.Diffusion sheet of the present utility model utilizes diffusingsurface can effectively reduce the striped of the dispersion phenomenon and the atomizing prism columns of light, reduces the chance that folded line takes place, and increases and produces yield.And can replace concentration piece shown in Figure 1 14 and go up diffusion sheet 15 by single diffusion sheet of the present utility model, reach the effect of two kinds of diaphragm combinations.And can reduce backlight module thickness, expenditure reduces cost.
Diffusion sheet of the present utility model can be reached following effect:
1, can save manufacturing time and cost;
2, can effectively reduce prism columns the optical dispersion phenomenon;
3, the striped of atomizing prism columns reduces the chance that folded line takes place;
4, the striped of atomizing prism columns helps to increase the production yield; And
5, the striped of atomizing prism columns, the defective of covering backlight module.
Above put down in writing, only for utilizing the embodiment of the utility model technology contents, anyly be familiar with modification, the variation that this operator uses the utility model to do, all belong in the claim scope that the utility model advocates, and be not limited to the content that embodiment discloses.
Claims (12)
1, a kind of diffusion sheet of tool light-focusing function is characterized in that, comprises a base material and a plurality of prism columns of vertically arranging strip; One surface of this base material is provided with this a plurality of prism columns; These a plurality of prism columns have crest line, first inclined-plane and second inclined-plane respectively; This crest line places the extreme higher position of this prism columns; This first inclined-plane, this second inclined-plane extend to this substrate by the both sides of this crest line respectively; Have at least an inclined-plane to be provided with rough diffusingsurface in this first inclined-plane of these a plurality of prism columns of part and this second inclined-plane; This diffusingsurface is provided with the concave and convex stripe of a plurality of irregular alignments.
2, the diffusion sheet of tool light-focusing function as claimed in claim 1 is characterized in that, wherein the width of this diffusingsurface account for this inclined-plane width 2% to 90% between.
3, the diffusion sheet of tool light-focusing function as claimed in claim 1 is characterized in that, wherein the trend of these a plurality of concave and convex stripes is perpendicular to this crest line.
4, the diffusion sheet of tool light-focusing function as claimed in claim 1 is characterized in that, wherein the trend of these a plurality of concave and convex stripes is parallel to this crest line.
5, the diffusion sheet of tool light-focusing function as claimed in claim 2 is characterized in that, wherein the trend of these a plurality of concave and convex stripes is perpendicular to this crest line.
6, the diffusion sheet of tool light-focusing function as claimed in claim 2 is characterized in that, wherein the trend of these a plurality of concave and convex stripes is parallel to this crest line.
7, the diffusion sheet of tool light-focusing function as claimed in claim 5 is characterized in that, wherein this diffusingsurface is near this base material.
8, the diffusion sheet of tool light-focusing function as claimed in claim 5 is characterized in that, wherein this diffusingsurface is near this crest line.
9, the diffusion sheet of tool light-focusing function as claimed in claim 6 is characterized in that, wherein this diffusingsurface is near this base material.
10, the diffusion sheet of tool light-focusing function as claimed in claim 6 is characterized in that, wherein this diffusingsurface is near this crest line.
As the diffusion sheet of each described tool light-focusing function in the claim 1 to 10, it is characterized in that 11, wherein the width of this diffusingsurface is that random number changes.
As the diffusion sheet of each described tool light-focusing function in the claim 1 to 10, it is characterized in that 12, wherein the width of this diffusingsurface is that rule changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200074077U CN201166306Y (en) | 2008-02-26 | 2008-02-26 | Diffusion sheet with light gathering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200074077U CN201166306Y (en) | 2008-02-26 | 2008-02-26 | Diffusion sheet with light gathering function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201166306Y true CN201166306Y (en) | 2008-12-17 |
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ID=40191696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200074077U Expired - Fee Related CN201166306Y (en) | 2008-02-26 | 2008-02-26 | Diffusion sheet with light gathering function |
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| Country | Link |
|---|---|
| CN (1) | CN201166306Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062894A (en) * | 2011-02-22 | 2011-05-18 | 苏州向隆塑胶有限公司 | Optical board |
| CN102359722A (en) * | 2011-05-25 | 2012-02-22 | 友达光电股份有限公司 | Backlight module and optical film thereof |
| CN102401913A (en) * | 2010-09-10 | 2012-04-04 | 阿尔卑斯电气株式会社 | Base plate with bumpy part and manufacturing method of the base plate |
| CN108957606A (en) * | 2018-07-05 | 2018-12-07 | 深圳创维－Rgb电子有限公司 | A kind of design method and compound film sheet of compound film sheet |
-
2008
- 2008-02-26 CN CNU2008200074077U patent/CN201166306Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401913A (en) * | 2010-09-10 | 2012-04-04 | 阿尔卑斯电气株式会社 | Base plate with bumpy part and manufacturing method of the base plate |
| CN102062894A (en) * | 2011-02-22 | 2011-05-18 | 苏州向隆塑胶有限公司 | Optical board |
| CN102359722A (en) * | 2011-05-25 | 2012-02-22 | 友达光电股份有限公司 | Backlight module and optical film thereof |
| CN108957606A (en) * | 2018-07-05 | 2018-12-07 | 深圳创维－Rgb电子有限公司 | A kind of design method and compound film sheet of compound film sheet |
| US11947137B2 (en) | 2018-07-05 | 2024-04-02 | Shenzhen Skyworth-Rgb Electronic Co., Ltd | Method for composite membrane and composite membrane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Luo Huibin Inventor after: Yuan Guanglin Inventor after: Liu Wenhao Inventor before: Luo Huibin Inventor before: Peng Guanglin Inventor before: Liu Wenhao |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LUO HUIBIN; PENG GUANGLIN; LIU WENHAO TO: LUO HUIBIN; YUAN GUANGLIN; LIU WENHAO |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20140226 |