CN202021934U - Stamping die and light guide plate thereof - Google Patents
Stamping die and light guide plate thereof Download PDFInfo
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- CN202021934U CN202021934U CN 201120044378 CN201120044378U CN202021934U CN 202021934 U CN202021934 U CN 202021934U CN 201120044378 CN201120044378 CN 201120044378 CN 201120044378 U CN201120044378 U CN 201120044378U CN 202021934 U CN202021934 U CN 202021934U
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- coining
- shrinkage pool
- miniature shrinkage
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- micropore
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Abstract
The utility model relates to a stamping die and a light guide plate of the stamping die. The stamping die provided by the utility model comprises a main body and a micropore-concentrated pattern, wherein the main body has a stamping surface, the micropore-concentrated pattern is distributed on the stamping surface and comprises a plurality of concave micropores, at least one protrusion is arranged on the circumference of each concave micropore, and molten surfaces are arranged at the top of the circumference of each concave micropore and at the top of the protrusion. The utility model has the benefit of reducing or even preventing the probability that the protrusions fall into the inner cavities of the concave micropores from the circumferences of the concave micropores, so as to avoid the problem that an optical microstructure pattern is not correctly stamped on the surface of a light guide plate during the subsequent procedure of stamping the optical microstructure pattern to the light guide plate by use of the stamping die. Besides, the service lives of products of the stamping die are prolonged.
Description
Technical field
The utility model relates to a kind of coining mould, relate in particular to a kind of on LGP the coining mould of coining optical microstructures pattern.
Background technology
When tradition is made optical microstructures on the LGP surface, wherein a method is to utilize laser beam that the coining mould is carried out the high temperature bombardment, form many miniature shrinkage pools after making this coining die surface by a plurality of laser beam fusions, so that utilize this type shrinkage pool slightly on the coining die surface, go out the optical microstructures of correspondence at the surperficial coining of LGP.Because the bore tool micron order size of these a little shrinkage pools is so be referred to as miniature shrinkage pool.
Yet, seeing also shown in the 1st figure, the 1st figure illustrates the vertical view (a) and the cutaway view (b) of miniature shrinkage pool tool volcanic crater outward appearance in the prior art.
Utilizing laser beam that the coining die surface is carried out the high temperature bombardment will cause slag splash phenomenon unavoidablely, sees so that each miniature shrinkage pool 440 place forms outside the volcanic crater, and meaning promptly forms one or more irregular thrust 420 at the periphery of miniature shrinkage pool 440.
So, if the thrust 420 of miniature shrinkage pool 440 peripheries falls in the miniature shrinkage pool 440 because of bending or avalanche, and when filling up miniature shrinkage pool 440, to cause coining mould follow-up coining when work of LGP being carried out the optical microstructures pattern, intactly coining goes out complete optical microstructures pattern, and then causes the deterioration of leading rotary light performance of LGP.
This shows that the structure of above-mentioned coining mould still exists inconvenience and defective, and remains further to be improved.In order to address the above problem, association area is there's no one who doesn't or isn't sought solution painstakingly, but does not see always that for a long time suitable mode finished by development.
Therefore, how to provide the structure that effectively addresses the above problem, avoid reproducing above-mentioned fruit afterwards, real one of the current important research and development problem that belongs to also becomes current association area and needs improved target badly.
Summary of the invention
The utility model technical issues that need to address have provided a kind of coining mould, are intended to solve the above problems.
The utility model also provides the LGP that adopts above-mentioned coining mould to obtain.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of coining mould of the present utility model comprises: a body; Described body has a coining face; And one micropore assemble pattern; Described micropore gathering pattern distribution is at this coining face and comprise a plurality of miniature shrinkage pools, and the periphery of each those miniature shrinkage pool has at least one thrust, and the end face of the periphery of each those miniature shrinkage pool and thrust thereof all has a melt surface.
Another kind of coining mould of the present utility model comprises: a body; Described body has a coining face; And one micropore assemble pattern; Described micropore is assembled pattern distribution at this coining face and comprise a plurality of by miniature shrinkage pool that laser beam formed; The periphery of each those miniature shrinkage pool has at least one depressed part, and this depressed part surface has a melt surface, and the degree of depth of this depressed part is less than the degree of depth of this miniature shrinkage pool, and common this miniature shrinkage pool of connecting of those depressed parts.
LGP of the present utility model comprises: the optical microstructures pattern that utilizes one of above-mentioned coining mould institute coining to go out, described optical microstructures pattern distribution is on the surface of this plate body and comprise a plurality of protuberances, outside each those protuberance type and this miniature shrinkage pool and those depressed parts jointly outside type be complementary.
Compared with prior art, the beneficial effects of the utility model are: can reduce or even avoid the thrust of miniature shrinkage pool periphery to fill up the chance of miniature shrinkage pool because of coming off, and then avoid that the coining mould is follow-up to carry out coining when work of optical microstructures pattern to LGP, can't go out correct optical microstructures pattern at LGP surface coining; In addition, also improve the life of product of coining mould.
Description of drawings
The 1st figure illustrates the vertical view (a) and the cutaway view (b) of miniature shrinkage pool tool volcanic crater outward appearance in the prior art.
The 2nd figure illustrates the utility model is bombarded the thrust of miniature shrinkage pool periphery in regular turn by laser beam operation chart.
The 3rd figure illustrates the schematic appearance of the utility model coining mould.
The micropore that the 4th figure illustrates the utility model coining mould is assembled a wherein miniature shrinkage pool among one of the pattern regional M in the vertical view of an embodiment.
The 5th figure illustrates the 5-5 cutaway view of the 4th figure.
The micropore that the 6th figure illustrates the utility model coining mould is assembled a wherein miniature shrinkage pool among one of the pattern regional M at the vertical view of another embodiment.
The 7th figure illustrates the 7-7 cutaway view of the 6th figure.
The micropore that the 8th figure illustrates the utility model coining mould is assembled a wherein miniature shrinkage pool among one of the pattern regional M at the cutaway view of another embodiment.
The micropore that the 9th figure illustrates the utility model coining mould is assembled a wherein miniature shrinkage pool among one of the pattern regional M at the cutaway view of an embodiment again.
The 10th figure illustrates schematic appearance and the operation chart thereof of the utility model coining mould at an embodiment.
The 11st figure illustrates schematic appearance and the operation chart thereof of the utility model coining mould at another embodiment.
The 12nd figure illustrates LGP that the utility model coining mould institute coining goes out the optics micro structured pattern at the schematic diagram of an embodiment and the partial enlarged drawing of a protuberance wherein.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
The utility model discloses a kind of coining mould, goes out the optics micro structured pattern in order to coining intactly, and then keeps the rotary light performance of leading of LGP.
The utility model discloses a kind of coining mould, fills up the chance of miniature shrinkage pool because of coming off in order to the thrust that reduces miniature shrinkage pool periphery.
It is to disclose a kind of coining mould that one of the utility model is implemented aspect.The coining mould comprises a body and a micropore is assembled pattern.Body has a coining face.Micropore is assembled pattern distribution in the coining face, comprises a plurality of miniature shrinkage pools.The periphery of each miniature shrinkage pool has at least one thrust, and the end face of the periphery of each miniature shrinkage pool and thrust thereof all has melt surface, for example the vestige that burns for crossing via laser beam treatment.It is the coining mould that another of the utility model implemented aspect.The coining mould comprises a body and a micropore is assembled pattern.Body has a coining face.Micropore is assembled pattern distribution in the coining face, comprises a plurality of miniature shrinkage pools.And the periphery of each miniature shrinkage pool has depended at least one depressed part.The depressed part surface has a melt surface, and the degree of depth of these a little depressed parts is less than the degree of depth of miniature shrinkage pool, and these a little depressed parts are common connects miniature shrinkage pool.
This another implement among one of the aspect embodiment, depressed part is around miniature shrinkage pool, wherein an annular recessed portion is connected so that formed to these a little depressed parts mutually; Perhaps, these a little depressed parts are not connected mutually, and are provided with at each interval.
This another implement among another embodiment of aspect, each miniature shrinkage pool is not had a volcanic crater outward appearance.
Above-mentioned one of aspect embodiment that respectively implements, body are a coining template, and the coining face is positioned at one side of coining template.
Above-mentioned another embodiment that respectively implements aspect, body are a coining cylinder, and this coining face is positioned at one of this coining cylinder periphery.
The above-mentioned another embodiment that respectively implements aspect, coining mould are made by a metal material or a plastic material.
The another enforcement aspect of the utility model is to disclose a kind of LGP.LGP comprises the optical microstructures pattern that a plate body and is gone out in plate body institute coining by above-mentioned coining mould.The optical microstructures pattern distribution comprises a plurality of protuberances in the surface of plate body.And outside each protuberance type and miniature shrinkage pool and this a little depressed parts common outside type be complementary.
As mentioned above, utilize laser beam that the coining die surface is carried out the high temperature irradiation and will cause slag splash phenomenon unavoidablely, so that forming outside the volcanic crater, each miniature shrinkage pool place sees, to cause the thrust of volcanic crater periphery may drop in the miniature shrinkage pool, and unfavorablely follow-up LGP or blooming/plate (for example diffusion barrier or diffuser plate) be carried out the coining work of optical microstructures pattern.
For this reason, see also shown in the 2nd figure, the 2nd figure illustrates the utility model is bombarded the thrust 420 of miniature shrinkage pool 410 peripheries in regular turn by laser beam 300 operation chart, the utility model coining mould 600 is to produce laser beam 300 by laser generator 100, rubidium Jacob laser (Nd-YAGLaser) for example, bombard these a little thrusts 420 of miniature shrinkage pool 410 peripheries respectively, with the size of dwindling thrust 420 at least or remove this thrust 420 fully.
It should be noted that, because above-mentioned slag splash phenomenon makes that the volcanic crater outward appearance of each miniature shrinkage pool 410 place formation can't be all in full accord at every turn.The most of general alignment of these a little thrusts possibilities also may partly fall within aforementioned centering on outside the scope with the periphery around miniature shrinkage pool 410 places.And these a little thrusts 420 are for example not of uniform size or, for example for a plurality of discontinuous thrusts that are arranged in the periphery of this miniature shrinkage pool 410, perhaps even may be thrust of at least one annular or the like.
See also shown in the 3rd figure, the 3rd figure illustrates the schematic appearance of the utility model coining mould 600.
The coining mould 600 of the utility model is made by a metal material or a plastic material, comprises a body 610 and a micropore and assembles pattern K.Micropore is assembled pattern K and is distributed in one of body 610 coining face, in order to a LGP or the surperficial coining of blooming/plate (for example diffusion barrier or diffuser plate) are gone out an optical microstructures pattern.
See also shown in the 4th figure and the 5th figure, the micropore that the 4th figure illustrates the utility model coining mould 600 is assembled a wherein miniature shrinkage pool 410 among one of the pattern K regional M in the vertical view of an embodiment.The 5th figure illustrates the 5-5 cutaway view of the 4th figure.
Micropore is assembled pattern K and is comprised a plurality of miniature shrinkage pool 410 and arrange and form (the 3rd figure).The periphery of each miniature shrinkage pool 410 be distributed with one or more depressed part 430 (the 4th figure), one or more reduced size towards body 610 sunken insides thrust 421 (in detail as hereinafter) or aforementioned both and deposit.
So, because the reduced size of each thrust 420 at volcanic crater or remove, no longer keep its original height, therefore, reduce coining mould 600 widely in the make mistake chance of optical microstructures pattern of LGP or the surperficial coining of blooming/plate (for example diffusion barrier or diffuser plate), further, also improve the life of product of coining mould 600.
Known to last, depressed part 430 also is to be formed (the 2nd (b) figure) by 300 fusions of laser beam, therefore, each depressed part 430 surface (comprising outer surface and inner surface) all has the melt surface of handling via laser beam 300 450, and the depth D 2 of each depressed part 430 is less than the depth D 2 (the 5th figure) of miniature shrinkage pool 410.Described melt surface 450 for example presents and burns (Huang or black) vestige.Specifically, change can be by the direction of periphery (comprising depressed part 430) outside its periphery of miniature shrinkage pool 410 gradually from depth to shallow for the degree of burning vestige.Also we can say, melt surface 450 be with the ripples shape by the periphery of miniature shrinkage pool 410 towards gradually from depth to shallow away from the direction of miniature shrinkage pool 410.
The utility model does not limit this arrangement mode of type shrinkage pool slightly, for example is even or non-homogeneous, or for example arranges in the array mode or arrange with linear mode.The research staff can be selected or be adjusted this arrangement mode of type shrinkage pool slightly according to actual demand or restriction.
The utility model more discloses more embodiment further to illustrate the variations in detail of each miniature shrinkage pool 410 periphery of the utility model.
It is described to consult the 2nd figure, the 4th figure and the 5th figure again, when the utility model bombards the thrust 420 at volcanic crater according to an embodiment, because laser generator 100 moves along the clockwise (for example clockwise or counterclockwise) of each miniature shrinkage pool 410 periphery, and with laser beam 300 compartment of terrains bombardments and destroy these a little thrusts 420 of miniature shrinkage pool 410 peripheries, and form a plurality of discontinuous depressed parts 430.These a little depressed parts 430 are arranged at the periphery of this miniature shrinkage pool 410 at each interval, and jointly around miniature shrinkage pool 410, and these a little depressed parts 430 are not connected mutually.In addition, also can select these a little depressed parts 430 inside to disconnect its miniature shrinkage pool 410 (as the 5th figure) among the embodiment, or the variation of connecting its miniature shrinkage pool jointly.
Recognize, owing to each depressed part 430 is bombarded by laser beam 300 to form, therefore, the caliber size of each depressed part 430, to each other between apart from or can't be in full accord towards the depth D 2 of body 610 sunken insides etc.So a little depressed parts 430 of this shown in the 4th figure and the 5th figure only can be considered as wherein a kind of reference, are not to mean depressed part 430 outward appearances of all miniature shrinkage pool 410 peripheries all shown in the 4th figure and the 5th figure.
See also shown in the 2nd figure, the 6th figure and the 7th figure, the micropore that the 6th figure illustrates the utility model coining mould 600 is assembled a wherein miniature shrinkage pool 410 among one of the pattern K regional M in the vertical view of another embodiment.The 7th figure illustrates the 7-7 cutaway view of the 6th figure.
When the utility model bombards the thrust 420 at volcanic crater according to another embodiment (the 2nd figure), because laser generator 100 is with each miniature shrinkage pools 410 bombardment of 300 pairs of laser beams and destroy these a little thrusts 420 of miniature shrinkage pool 410 peripheries, so that the correspondence position of the periphery of miniature shrinkage pool 410 forms the annular recessed portion 440 of body 610 depressions on one day.Wherein annular recessed portion 440 is around miniature shrinkage pool 410, and the depth D 2 of annular recessed portion 440 is less than the depth D 1 of miniature shrinkage pool 410.In addition, the variation (as the 7th figure) that also can select this a little depressed parts inside to disconnect its miniature shrinkage pool or connect its miniature shrinkage pool 410 jointly among the embodiment.
Recognize that owing to annular recessed portion 440 is bombarded by laser beam 300 to form, therefore, each section of the size of annular recessed portion 440 or annular recessed portion 440 all can't be consistent repeatedly towards the depth D 2 of body 610 depressions.So the annular recessed portion 440 shown in the 6th figure, the 7th figure only can be considered as wherein a kind of reference, be not to mean outside the annular recessed portion 440 of all miniature shrinkage pool 410 peripheries to see all shown in the 6th figure, the 7th figure.
Because after each depressed part 430 (or annular recessed portion 440) of each miniature shrinkage pool 410 periphery of coining mould 600 is done; coining mould 600 surfaces are the residual a little dust of possibility, particle or material bits still; so; when its miniature shrinkage pool 410 is disconnected in this a little depressed parts 430 (or annular recessed portion 440) inside; each depressed part 430 (or annular recessed portion 440) can assist to collect these a little dusts, particle or material bits, reduces the probability that it falls into each miniature shrinkage pool 410.
What need explanation is; because the more miniature shrinkage pool of depressed part 430 (or annular recessed portion 440) 410 is shallow; even if filled up by these a little dusts, particle or material bits, still can not influence coining mould 600 is gone up coining optical microstructures pattern in LGP or blooming/plate (for example diffusion barrier or diffuser plate) effect.
Because each depressed part 430 (or annular recessed portion 440) is bombarded by laser beam 300 to form, certainly will also can have above-mentioned slag splash phenomenon, yet, because the bombardment degree of the laser beam 300 of bombardment thrust 420 is far away from the bombardment degree of the laser beam that produces miniature shrinkage pool 410, so, it is obvious far away from the volcanic crater outward appearance at each miniature shrinkage pool 410 place to have the outward appearance at volcanic crater, therefore, does not have described shortcoming of prior art and inconvenience.
See also shown in the 2nd figure, the 8th figure, the micropore that the 8th figure illustrates the utility model coining mould 600 is assembled a wherein miniature shrinkage pool 410 among one of the pattern K regional M in the cutaway view of another embodiment.
When the utility model bombards the thrust 420 at volcanic crater according to another embodiment (the 2nd figure), by laser generator 100 is adjusted suitable parameter (for example umber of pulse of small-power or small frequency), when laser generator 100 can make each thrust 420 of miniature shrinkage pool 410 peripheries of laser beam 300 bombardments, avoid depressed part 430 outsides to produce the outward appearance at volcanic crater, meaning is that body 610 surfaces connect side outside the depressed parts 430 and have roughly planar portions 423 with body 610 flush.
Because each miniature shrinkage pool 410 has not been had the volcanic crater outward appearance, can get rid of thrust 420 (the 1st figure) and fall to interior the situations generation of miniature shrinkage pool 410 because of bending or avalanche, so, help and follow-up LGP or blooming/plate (for example diffusion barrier or diffuser plate) coining gone out complete optical microstructures pattern.
See also shown in the 2nd figure, the 9th figure, the micropore that the 9th figure illustrates the utility model coining mould 600 is assembled a wherein miniature shrinkage pool 410 among one of the pattern K regional M in the cutaway view of an embodiment again.
When the utility model bombards the thrust 420 at volcanic crater according to an embodiment again (the 2nd figure), by laser generator 100 is adjusted suitable parameter (for example umber of pulse of small-power or small frequency), when laser generator 100 can make each thrust 420 of miniature shrinkage pool 410 peripheries of laser beam 300 bombardments, make this a little thrust 420 destroyed and after collapsing in body 610 surfaces, only form the thrust 421 (the 9th figure) of reduced size, but not depressed part.The end face of these a little thrusts 421 all has the melt surface 450 that bombarded via laser beam 300, and melt surface 450 for example burns (Huang or black) vestige for presenting.The degree of burning vestige changes can be by the periphery of miniature shrinkage pool 410 towards away from the direction of miniature shrinkage pool 410 gradually from depth to shallow.
So, because when these a little residual thrusts 421 are no longer kept its original height, these a little residual thrusts 421 will reduce widely because of bending or avalanche fall to miniature shrinkage pool 410 interior probability, so, help and follow-up LGP or blooming/plate (for example diffusion barrier or diffuser plate) coining gone out complete optical microstructures pattern.
Recognize, owing to the thrust 421 of above-mentioned reduced size is bombarded by laser beam 300 to form, therefore, residual thrust 421 sizes or exist the outward appearance all can't be consistent repeatedly.So the thrust 421 of the reduced size shown in the 9th figure only can be considered as wherein a kind of reference, be not to mean outside the thrust 421 of all reduced sizes to see all shown in the 9th figure.
See also shown in the 10th figure and the 11st figure, the 10th figure illustrates schematic appearance and the operation chart thereof of the utility model coining mould 600 in an embodiment.The 11st figure illustrates LGP 501 (only do explanation, but be not limited thereto) that 600 coining of the utility model coining mould go out optics micro structured pattern P in the schematic diagram of an embodiment and the partial enlarged drawing of a protuberance 502 wherein.
The utility model coining mould 600 is in an embodiment, and body 610 is a coining template 620.Coining template 620 is roughly rectangular, has relative front 621 and reverse side 622, and circled positive 621, reverse side 622 more than individual sides 623.Each side 623 presents one side of thickness for coining template 620, and the area of arbitrary side 623 is all less than positive 621 or the area of reverse side 622.The coining face is positioned at the front 621 or the reverse side 622 of coining template 620, anticipates promptly, and micropore is assembled front 621 or reverse side 622 or the positive and negative 621,622 that pattern K is distributed in coining template 620.
So, when the user with still unhardened LGP 501 pressings so far the micropore on coining template 620 surfaces assemble pattern K, thus these LGP 501 surperficial coining are gone out an optical microstructures pattern P (as the 11st figure).So, LGP 501 surfaces just can form many protuberances 502, and type was complementary outside these a little protuberances 502 and miniature shrinkage pool 410 and this a little depressed parts were common.
See also shown in the 11st figure and the 12nd figure, the 12nd figure illustrates schematic appearance and the operation chart thereof of the utility model coining mould 600 in another embodiment.
The utility model coining mould 600 is in another embodiment, and body 610 is a coining cylinder 630.The coining face is positioned on the periphery 631 of coining cylinder 630, anticipates promptly, and micropore is assembled pattern K and is distributed on the periphery 631 of coining cylinder 630.
So, when the user passes through a still unhardened LGP 501 between the two coining cylinders 630, have micropore on the periphery 631 of wherein at least one coining cylinder 630 and assemble pattern K, thus these LGP 501 surperficial coining are gone out an optical microstructures pattern P (as the 11st figure).So, LGP 501 surfaces just can form many protuberances 502, and type was complementary outside the depressed part around each protuberance 502 and a miniature shrinkage pool 410 and this miniature shrinkage pool 410 was common.
In sum, the utility model coining mould can reduce or even avoid the thrust of miniature shrinkage pool periphery to fill up the chance of miniature shrinkage pool because of coming off, and then avoid coining mould follow-up coining when work of LGP being carried out the optical microstructures pattern, can't go out correct optical microstructures pattern in LGP surface coining, further, also improve the life of product of coining mould.
The utility model discloses among as above each embodiment; be not in order to limit the utility model; anyly have the knack of this skill; in the spirit and scope that do not break away from the utility model; when can doing various changes and retouching, so the protection domain of the utility model is when looking being as the criterion that the appended claim protection domain defined.
Claims (11)
1. a coining mould comprises: a body; It is characterized in that: described body has a coining face; And one micropore assemble pattern; Described micropore gathering pattern distribution is at this coining face and comprise a plurality of miniature shrinkage pools, and the periphery of each those miniature shrinkage pool has at least one thrust, and the end face of the periphery of each those miniature shrinkage pool and thrust thereof all has a melt surface.
2. coining mould according to claim 1 is characterized in that: this body is a coining template, and this coining face is positioned at one side of this coining template.
3. coining mould according to claim 1 is characterized in that: this body is a coining cylinder, and this coining face is positioned at one of this coining cylinder periphery.
4. coining mould according to claim 1 is characterized in that: the burn vestige of this melt surface for crossing via laser beam treatment.
5. a coining mould comprises: a body; It is characterized in that: described body has a coining face; And one micropore assemble pattern; Described micropore is assembled pattern distribution at this coining face and comprise a plurality of by miniature shrinkage pool that laser beam formed; The periphery of each those miniature shrinkage pool has at least one depressed part, and this depressed part surface has a melt surface, and the degree of depth of this depressed part is less than the degree of depth of this miniature shrinkage pool, and common this miniature shrinkage pool of connecting of those depressed parts.
6. coining mould according to claim 5 is characterized in that: a plurality of these at least one depressed parts are around this miniature shrinkage pool.
7. coining mould according to claim 6 is characterized in that: an annular recessed portion is connected so that formed to those depressed parts mutually.
8. coining mould according to claim 6 is characterized in that: those depressed parts are not connected mutually, and are provided with at each interval.
9. coining mould according to claim 5 is characterized in that: each those miniature shrinkage pool is not had a volcanic crater outward appearance.
10. coining mould according to claim 5 is characterized in that: the burn vestige of this melt surface for crossing via laser beam treatment.
11. LGP, it is characterized in that comprising: the optical microstructures pattern that goes out of coining mould institute coining according to claim 1 or 5, described optical microstructures pattern distribution is on the surface of this plate body and comprise a plurality of protuberances, outside each those protuberance type and this miniature shrinkage pool and those depressed parts jointly outside type be complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120044378 CN202021934U (en) | 2011-02-22 | 2011-02-22 | Stamping die and light guide plate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120044378 CN202021934U (en) | 2011-02-22 | 2011-02-22 | Stamping die and light guide plate thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202021934U true CN202021934U (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120044378 Expired - Fee Related CN202021934U (en) | 2011-02-22 | 2011-02-22 | Stamping die and light guide plate thereof |
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| CN (1) | CN202021934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173236A (en) * | 2011-02-22 | 2011-09-07 | 苏州向隆塑胶有限公司 | Stamping die and light guide plate thereof |
-
2011
- 2011-02-22 CN CN 201120044378 patent/CN202021934U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173236A (en) * | 2011-02-22 | 2011-09-07 | 苏州向隆塑胶有限公司 | Stamping die and light guide plate thereof |
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Granted publication date: 20111102 Termination date: 20190222 |
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