CN101017270A - Optical mould train - Google Patents
Optical mould train Download PDFInfo
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- CN101017270A CN101017270A CN 200610006805 CN200610006805A CN101017270A CN 101017270 A CN101017270 A CN 101017270A CN 200610006805 CN200610006805 CN 200610006805 CN 200610006805 A CN200610006805 A CN 200610006805A CN 101017270 A CN101017270 A CN 101017270A
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- lens array
- optical lens
- array board
- those
- thrusts
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Abstract
This invention relates to one optical module set, which comprises at least one light source, first lens array board and second board, wherein, the first optical lens array board in on light source and the second lens array board is on first one; first lens array board surface has several curve protrusion object in round arc shape; the second lens array surface has several diamond protrusion with angle tamper shape.
Description
[technical field]
The invention relates to a kind of optics module, and particularly relevant for a kind of optics module that is applied to module backlight in the LCD.
[background technology]
Owing to be subject to known manufacturing light source or light-emitting component, for example produce light emitting diode (the Light Emitting Diodes of pointolite; LED) or produce cold cathode fluorescent lamp pipe (the Cold Cathode Fluorescent Lamp of line source; CCFL) mode is so Chang Wufa forms the planar light source of brightness homogeneous.Therefore, traditional way is to produce in the product of planar light source at needs, adds that in the light source luminescent place a slice can be with the blooming piece of light source atomizing, with the homogenising light source, and add the blooming piece that a slice has light-focusing function in the light source luminescent place, to increase the brightness of forward.
Typical example such as LCD (Liquid Crystal Display; LCD) module backlight in.Because liquid crystal itself can't be luminous, therefore need to use module backlight to supply light source, just can reach display effect.Please refer to Fig. 1, it is the diagrammatic cross-section that illustrates a kind of known module backlight.In Fig. 1, module 100 backlight comprises light source 102, light guide plate 104, diffusion sheet 106, concentration piece 108 and reflector plate 110.At first, the light that is projected by light source 102 can be introduced into light guide plate 104.Then, light can be reflected through reflector plate 110 afterwards, and penetrates diffusion sheet 106 with homogenising light.Subsequently, penetrate concentration piece 108 again to improve forward brightness.At last, the light that improves the forward brightness via diffusion sheet 106 homogenising and process concentration piece 108 can enter the LCD panel (not being illustrated on the figure) that is positioned at module backlight 100 tops, and makes the LCD panel produce bright dark effect.
Yet, in order to strengthen the brightness of module backlight more, even can in known module backlight, add another sheet concentration piece again, to strengthen the brightness of forward more.Please refer to Fig. 2, is the diagrammatic cross-section that illustrates the known module backlight of two concentration pieces of a kind of use.As shown in Figure 2, last concentration piece 109 is to be stacked on the concentration piece 108, and upward concentration piece 109 is to be stacked with different arrangement modes with concentration piece 108.Wherein, one of last concentration piece 109 and concentration piece 108 have raised structures 114 on the surface, and raised structures 114 is that systematicness is arranged.Yet, 100 of the modules backlight of two concentration pieces of above-mentioned application can derive another problem and be, owing to all have the raised structures 114 that systematicness is arranged on the surface of two concentration pieces 108,109 up and down, and two concentration pieces the 108, the 109th, stacked on top is together, so when light passes through concentration piece 108 and last concentration piece 109 in regular turn, then can produce interference fringe 120 as shown in Figure 3, folded line effect (moire effect) take place, and cause visual defective.
In view of this, general common meeting adds another sheet diffusion sheet above last concentration piece, to improve folded line effect, as the last diffusion sheet 111 among Fig. 2.Yet, as seen from Figure 2, the quantity of the blooming piece in the module backlight is up to more than four at this moment, so in the process that light is transmitting, light not only can be partially absorbed by these blooming pieces and reduce outside the utilization rate of light, more can cause the burden of material and assembly cost because of using many blooming pieces.In addition, the known display effect that module backlight provided often can't be kept uniform brightness within the angle of visibility of certain limit, that is to say that if then the brightness meeting declines to a great extent when angle of visibility is spent greater than 25, approximately only half of remaining forward brightness.
Therefore, how under the situation that does not reduce brightness, can reduce the use number of blooming piece, and can take into account again and reduce considering of folded line effect, and can improve brightness within the angle of visibility of certain limit, be one of emphasis of research and development at present.
[summary of the invention]
The objective of the invention is to be to provide a kind of optics module, only need to use two blooming pieces can reach traditionally the effect that must just can reach by the blooming piece more than at least four.
Another object of the present invention is to be to provide a kind of optics module, with within the angle of visibility of certain limit, improves the brightness of optics module.
Another purpose of the present invention is to be to provide a kind of optics module, to reduce the cost of its material and assembling.
In order to achieve the above object, the present invention proposes a kind of optics module, and it can be a kind of module backlight.Above-mentioned module backlight has at least one light source, the first optical lens array board and the second optical lens array board, and the first optical lens array board is positioned on the light source, and the second optical lens array board is positioned on the first optical lens array board.Wherein, one of first optical lens array board has several curve tab things on the surface, and the section shape of curve tab thing is a circular arc.Have several prismatic thrusts on one of the second optical lens array board surface, and the section shape of prismatic thrust is a pyramid.
The present invention also proposes a kind of optics module, comprises: a reflecting plate; At least one light source is positioned on this reflecting plate; One light guide plate is positioned at one of this light source end; One first optical lens array board is positioned on this light source, wherein has several curve tab things on one of this first optical lens array board surface, and the section shape of those curve tab things is a circular arc; And one second optical lens array board, be positioned on this first optical lens array board, wherein have several prismatic thrusts on one of this second optical lens array board surface, the section shape of those prismatic thrusts is a pyramid.
According to preferred embodiment of the present invention, the ratio high and arc length of the circular arc in the curve tab thing on the first above-mentioned optical lens array board is preferably between 0.25 to 0.5, and better is to be 0.5.
According to preferred embodiment of the present invention, the folded angle in top of the prismatic thrust on the second above-mentioned optical lens array board is preferably between 60 ° to 120 °, and better is to be 90 °.
In addition, in another preferred embodiment of the present invention, the surface also can be several prismatic thrusts one of on the first optical lens array board in the optics module of the present invention.Wherein, the section shape of prismatic thrust is a pyramid.
By the preferred embodiment of the invention described above as can be known, use the present invention and have following advantage.Optics module of the present invention not only can improve the brightness of optics module within the angle of visibility of certain limit, more can improve folded line effect.Moreover, optics module of the present invention can be reached traditionally the effect that must just can be reached by the blooming piece more than at least four, that is to say that optics module of the present invention not only can reduce the usage quantity of blooming piece, can also reduce the cost of material and assembling.In addition, optical element of the present invention can also use two optical lens array boards with identical prismatic raised structures, so that the brightness of blooming module to be provided.
[description of drawings]
For allowing above-mentioned and other purposes of the present invention, feature, advantage and embodiment can become apparent appended graphic being described in detail as follows:
Fig. 1 is the diagrammatic cross-section that illustrates a kind of known module backlight.
Fig. 2 is the diagrammatic cross-section that illustrates the known module backlight of two concentration pieces of a kind of use.
Fig. 3 is a kind of synoptic diagram that produces folded line effect.
Fig. 4 A, 4B are the diagrammatic cross-sections that illustrates a kind of module backlight of the present invention respectively.
Fig. 5 is the enlarged diagram that illustrates the cross-section structure of the first optical lens array board among Fig. 4 A.
Fig. 6 is the enlarged diagram that illustrates the cross-section structure of the second optical lens array board among Fig. 4 A.
Fig. 7,8 is to illustrate respectively according to a kind of first optical lens array board of preferred embodiment of the present invention and the vertical view of the second optical lens array board.
Fig. 9,10 is to illustrate respectively according to a kind of first optical lens array board of preferred embodiment of the present invention and the vertical view of the second optical lens array board.
Figure 11 A, 11B are the diagrammatic cross-sections that illustrates a kind of module backlight in another preferred embodiment of the present invention respectively.
[embodiment]
Optics module provided by the present invention can not only reduce the use number of blooming piece, can improve folded line effect again, and it is constant to keep brightness within the angle of visibility of certain limit.Below will and describe in detail and clearly demonstrate spirit of the present invention with diagram, as the person skilled in the art after understanding preferred embodiment of the present invention, when can be by the technology of teachings of the present invention, change and modification, it does not break away from spirit of the present invention and scope.
Please refer to Fig. 4 A, 4B, is the diagrammatic cross-section that illustrates a kind of module backlight of the present invention respectively.In Fig. 4 A, module backlight is a kind of module backlight 200 of side light inlet type, and it comprises light source 202, light guide plate 204, the first optical lens array board 206, the second optical lens array board 210 and reflector plate 214.Above-mentioned light guide plate 204 is the sides that are positioned at light source 202, and the first optical lens array board 206 is to be positioned on the light source 202, and the second optical lens array board 2 10 is to be positioned on the first optical lens array board 206.Wherein, have several curve tab things 208 on the surface of the first optical lens array board 206, and have several prismatic thrusts 212 on the surface of the second optical lens array board 210.
Perhaps, in another preferred embodiment of the present invention, shown in Fig. 4 B, module backlight more can be a kind of Staight downward type backlight module 201, but not as limit.In Fig. 4 B, Staight downward type backlight module 201 comprises light source 202, light guide plate 204, diffusion sheet 205, the first optical lens array board 206, the second optical lens array board 210 and reflector plate 214.Wherein, above-mentioned light source 202 is the tops that are positioned at reflector plate 214, light guide plate 204 is positioned at directly over the light source 202, diffusion sheet 205 is the tops that are positioned at light guide plate 204, the first optical lens array board 206 is to be positioned on the light source 202, and the second optical lens array board 210 is to be positioned on the first optical lens array board 206.
The first above-mentioned optical lens array board 206 and the preferred materials of the second optical lens array board 210 are the good material of light transmission, for example glass and polyester material etc.And the prismatic thrust 212 on the curve tab thing 208 on the first optical lens array board 206 and the second optical lens array board 210, the preferable following size of micron order that is all of its size is more preferred from below the 50 μ m.
The first above-mentioned optical lens array board 206 and the method for making of the second optical lens array board 210 be preferably with resin-coated on template with curved-surface structure or prismatic structure or roller after, cover again and go up optical substrate, make curved-surface structure or prismatic structure can be formed on the optical substrate, to form the first optical lens array board 206 or the second optical lens array board 210.Wherein, the material of above-mentioned resin is preferably the resin of a high index of refraction, and the refractive index of resin is preferably greater than 1.5.In preferred embodiment of the present invention, the method for making of the first optical lens array board and the second optical lens array board is not in order to limit scope of the present invention.
Please refer to Fig. 5, it is the enlarged diagram that illustrates the cross-section structure of the first optical lens array board among Fig. 4 A.In Fig. 5, have several curve tab things 208 on the surface of the first optical lens array board 206, and the section shape of curve tab thing 208 can be circular arc.Wherein, above-mentioned curve tab thing 208 big or small identical, and arrangement mode is regularly arranged, but the size of curve tab thing 208 and arrangement mode be not in order to limit scope of the present invention.In preferred embodiment of the present invention, the high R of the circular arc in the curve tab thing 208
aWith arc length R
bRatio be preferably between 0.25 to 0.5, better is to be 0.5.Moreover the bottom shape of above-mentioned curve tab thing 208 can be circle or hexagon, but its bottom shape is not in order to limit scope of the present invention.
Please refer to Fig. 7,8, is the vertical view that illustrates respectively according to a kind of first optical lens array board of preferred embodiment of the present invention.Please be simultaneously with reference to Fig. 5, Fig. 5 is the diagrammatic cross-section along the tangent line I-I ' of Fig. 7 or Fig. 8.In Fig. 7, have several curve tab things 208 on the surface of the first optical lens array board 206, and the bottom shape of curve tab thing 208 is preferably circle, but not in order to limit scope of the present invention.Perhaps, as shown in Figure 8, the bottom shape of the curve tab thing 208 on the first optical lens array board 206 more can be a hexagon, but not in order to limit scope of the present invention.
Please refer to Fig. 6, it is the enlarged diagram that illustrates the cross-section structure of the second optical lens array board among Fig. 4 A.In Fig. 6, have several prismatic thrusts 212 on the surface of the second optical lens array board 210, and the section shape of prismatic thrust 212 is a pyramid.Wherein above-mentioned prismatic thrust 212 big or small identical, and arrangement mode is regularly arranged, but the size of prismatic thrust 212 and arrangement mode be not in order to limit scope of the present invention.In preferred embodiment of the present invention, the top of prismatic thrust 212 is top projections, and the folded angle θ of top projection is preferably between 60 ° to 120 °, and better is to be 90 °.
Moreover the bottom shape of above-mentioned prismatic thrust 212 can be square or circular, but its bottom shape is not in order to limit scope of the present invention.Please refer to Fig. 9,10, is the vertical view that illustrates according to a kind of second optical lens array board of preferred embodiment of the present invention.Please be simultaneously with reference to Fig. 6, Fig. 6 is the diagrammatic cross-section along the tangent line K-K ' of Fig. 9 or Figure 10.In Fig. 9, have several prismatic thrusts 212 on the surface of the second optical lens array board 210, and the bottom shape of prismatic thrust 212 is preferably square, but not in order to limit scope of the present invention.Perhaps, as shown in figure 10, the bottom shape of the prismatic thrust 212 on the second optical lens array board 210 more can be circle, but not in order to limit scope of the present invention.In a preferred embodiment of the present invention, be to utilize two optical lens array boards (the first optical lens array board 206 and the second optical lens array board 210) with prismatic thrust 212 with curve tab thing 208 with different raised structures, and the second optical lens array board 210 is to be stacked on the first optical lens array board 206, to improve folded line effect.And can within the angle of visibility of certain limit, make the brightness blast 100% of module backlight, that is to say the angle of visibility within 30 degree, can keep evenly constant effect of brightness.
In addition, shown in Figure 11 A, 11B, the surface on the first optical lens array board 206 in the optics module of the present invention also can have several prismatic thrusts 212.Wherein, the section shape of prismatic thrust 212 is a pyramid.Because size, material, bottom shape and the arrangement mode of the prismatic thrust 212 on the first optical lens array board 206 are all as above-mentioned preferred embodiment, so not this how good giving unnecessary details.Therefore, by the invention described above preferred embodiment as can be known, use the present invention and have following advantage.Optics module of the present invention not only can improve the brightness of optics module within the angle of visibility of certain limit, more can improve folded line effect.Moreover, in the optics module of the present invention, the prismatic thrust on the curve tab thing on the first optical lens array board and the second optical lens array board, its size all is for below the micron order, so can reach the effect of atomizing and optically focused simultaneously.Moreover, optics module of the present invention can be reached traditionally the effect that must just can be reached by the blooming piece more than at least four, that is to say that optics module of the present invention not only can reduce the usage quantity of blooming piece, more can reduce the cost of material and assembling.In addition, optical element of the present invention more can use two optical lens array boards with identical prismatic raised structures, so that the brightness of blooming module to be provided.
Though the present invention discloses as above with a preferred embodiment, so it is not in order to limit the present invention.
[main element symbol description]
100: backlight module 102,202: light source
104,204: LGP 106,205: diffusion sheet
111: upper diffusion sheet 109: upper concentration piece
108: concentration piece 110,214: reflector plate
112:LCD panel 114: raised structures
120: interference fringe 200: the backlight module of side light inlet type
201: 206: the first optical lens array boards of Staight downward type backlight module
208: 210: the second optical lens array boards of curve tab thing
212: prismatic thrust Ra: the circular arc height
R
b: arc length θ: angle.
Claims (27)
1. optics module, it is characterized in that: this optics module comprises:
At least one light source;
One first optical lens array board is positioned on this light source, wherein has several curve tab things on one of this first optical lens array board surface, and the section shape of those curve tab things is a circular arc; And
One second optical lens array board is positioned on this first optical lens array board, wherein has several prismatic thrusts on one of this second optical lens array board surface, and the section shape of those prismatic thrusts is a pyramid.
2. optics module as claimed in claim 1 is characterized in that: circular arc ratio high and arc length is between 0.25 to 0.5 in those curve tab things of this first optical lens array board.
3. optics module as claimed in claim 2 is characterized in that: the high ratio with arc length of circular arc is 0.5 in those curve tab things of this first optical lens array board.
4. optics module as claimed in claim 1 is characterized in that: the folded angle in top of those prismatic thrusts of this second optical lens array board is between 60 ° to 120 °.
5. optics module as claimed in claim 4 is characterized in that: the folded angle in top of those prismatic thrusts of this second optical lens array board is 90 °.
6. optics module as claimed in claim 1 is characterized in that: the size of those curve tab things and those prismatic thrusts is below the micron order.
7. optics module as claimed in claim 6 is characterized in that: the size of those curve tab things and those prismatic thrusts is below 50 micron orders.
8. optics module as claimed in claim 1 is characterized in that: the arrangement of those curve tab things and those prismatic thrusts is irregular.
9. optics module as claimed in claim 1 is characterized in that: the arrangement of those curve tab things and those prismatic thrusts is regular.
10. optics module as claimed in claim 1 is characterized in that: also comprise a light guide plate and be positioned under this first optical lens array board.
11. optics module as claimed in claim 10 is characterized in that: also comprise a reflecting plate and be positioned under this light guide plate.
12. a module backlight is characterized in that: comprise:
One reflecting plate;
At least one light source is positioned on this reflecting plate;
One light guide plate is positioned at one of this light source end;
One first optical lens array board is positioned on this light source, wherein has several curve tab things on one of this first optical lens array board surface, and the section shape of those curve tab things is a circular arc; And
One second optical lens array board is positioned on this first optical lens array board, wherein has several prismatic thrusts on one of this second optical lens array board surface, and the section shape of those prismatic thrusts is a pyramid.
13. module backlight as claimed in claim 12 is characterized in that: this light source is positioned under this light guide plate.
14. module backlight as claimed in claim 12 is characterized in that: this light source is the side that is positioned at this light guide plate.
15. module backlight as claimed in claim 12 is characterized in that: circular arc ratio high and arc length is between 0.25 to 0.5 in those curve tab things of this first optical lens array board.
16. module backlight as claimed in claim 15 is characterized in that: the high ratio with arc length of circular arc is 0.5 in those curve tab things of this first optical lens array board.
17. module backlight as claimed in claim 12 is characterized in that: the folded angle in top of those prismatic thrusts of this second optical lens array board is between 60 ° to 120 °.
18. module backlight as claimed in claim 17 is characterized in that: the folded angle in top of those prismatic thrusts of this second optical lens array board is 90 °.
19. module backlight as claimed in claim 12 is characterized in that: the size of those curve tab things and those prismatic thrusts is below the micron order.
20. module backlight as claimed in claim 19 is characterized in that: the size of those curve tab things and those prismatic thrusts is below 50 micron orders.
21. module backlight as claimed in claim 12 is characterized in that: the arrangement of those curve tab things and those prismatic thrusts is irregular.
22. module backlight as claimed in claim 12 is characterized in that: the arrangement of those curve tab things and those prismatic thrusts is regular.
23. an optics module is characterized in that: this optics module comprises:
At least one light source;
One first optical lens array board is positioned on this light source, wherein has several prismatic thrusts on one of this first optical lens array board surface, and the section shape of those prismatic thrusts is a pyramid; And
One second optical lens array board is positioned on this first optical lens array board, wherein has several prismatic thrusts on one of this second optical lens array board surface, and the section shape of those prismatic thrusts is a pyramid.
24. optics module as claimed in claim 23 is characterized in that: the folded angle in the top of those prismatic thrusts of this first optical lens array board and this second optical lens array board is between 60 ° to 120 °.
25. optics module as claimed in claim 24 is characterized in that: the folded angle in the top of those prismatic thrusts is 90 °.
26. optics module as claimed in claim 23 is characterized in that: the size of those prismatic thrusts is below the micron order.
27. optics module as claimed in claim 26 is characterized in that: the size of those prismatic thrusts is below 50 micron orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610006805 CN101017270A (en) | 2006-02-07 | 2006-02-07 | Optical mould train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610006805 CN101017270A (en) | 2006-02-07 | 2006-02-07 | Optical mould train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101017270A true CN101017270A (en) | 2007-08-15 |
Family
ID=38726378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610006805 Pending CN101017270A (en) | 2006-02-07 | 2006-02-07 | Optical mould train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101017270A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435885B (en) * | 2007-11-16 | 2010-09-29 | 鸿富锦精密工业（深圳）有限公司 | Backlight module unit and prism lens |
| CN103430056A (en) * | 2011-03-15 | 2013-12-04 | Lg化学株式会社 | Microlens array sheet and backlight unit having same |
| CN104279515A (en) * | 2014-09-23 | 2015-01-14 | 苏州仁捷瑞自动化科技有限公司 | Medical optical film |
| CN104813098A (en) * | 2012-09-27 | 2015-07-29 | Lg伊诺特有限公司 | Illuminating device and vehicle lamp comprising same |
-
2006
- 2006-02-07 CN CN 200610006805 patent/CN101017270A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435885B (en) * | 2007-11-16 | 2010-09-29 | 鸿富锦精密工业（深圳）有限公司 | Backlight module unit and prism lens |
| CN103430056A (en) * | 2011-03-15 | 2013-12-04 | Lg化学株式会社 | Microlens array sheet and backlight unit having same |
| CN103430056B (en) * | 2011-03-15 | 2015-09-23 | Lg化学株式会社 | Microlens array sheet and comprise the back light unit of described microlens array sheet |
| CN104813098A (en) * | 2012-09-27 | 2015-07-29 | Lg伊诺特有限公司 | Illuminating device and vehicle lamp comprising same |
| CN104813098B (en) * | 2012-09-27 | 2018-05-11 | Lg伊诺特有限公司 | Lighting device and the car light including the lighting device |
| US10030840B2 (en) | 2012-09-27 | 2018-07-24 | Lg Innotek Co., Ltd. | Illuminating device and vehicle lamp comprising same |
| CN104279515A (en) * | 2014-09-23 | 2015-01-14 | 苏州仁捷瑞自动化科技有限公司 | Medical optical film |
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