CN102073091A - Light guide plate, backlight module and display device thereof - Google Patents
Light guide plate, backlight module and display device thereof Download PDFInfo
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- CN102073091A CN102073091A CN 201110043885 CN201110043885A CN102073091A CN 102073091 A CN102073091 A CN 102073091A CN 201110043885 CN201110043885 CN 201110043885 CN 201110043885 A CN201110043885 A CN 201110043885A CN 102073091 A CN102073091 A CN 102073091A
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Abstract
The invention relates to a light guide plate, a backlight module and a display device thereof. The light guide plate comprises a plate body and an optical microstructure pattern, wherein the optical microstructure pattern is distributed on the surface of the plate body and comprises a plurality of micro concave holes; the periphery of each of the micro concave holes is provided with at least one recessed part having a molten surface; and the depth of each recessed part is smaller than that of each micro concave hole. The invention has the advantages that: the possibility for protrusions at the peripheries of the micro concave holes to fall off to fill the micro concave holes can be reduced or avoided, and the optical guide rotation performance of the optical microstructure is prevented from being degraded after the light guide plate is manufactured. In addition, after the light guide plate is arranged in a display, the joint tightness of the light guide plate and an optical film is improved, the excellent light-extraction efficiency is kept, the optical film is prevented from being broken, and the service life of the product is prolonged.
Description
Technical field
The present invention relates to a kind of display device, relate in particular to light guide plate and backlight module in this display device.
Background technology
When tradition is made optical microstructures on the light guide plate surface, wherein a method is to utilize laser beam that light guide plate itself is carried out the high temperature bombardment, form many miniature shrinkage pools after making this light guide plate surface by a plurality of laser beam fusions, so that directly produce optical microstructures on the light guide plate surface.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 cut-open view (b) of miniature shrinkage pool tool crater outward appearance in the prior art.
Utilizing laser beam that the high temperature bombardment is carried out on light guide plate 500 surfaces will cause slag splash phenomenon unavoidablely, sees so that each miniature shrinkage pool 410 place forms outside the crater, and meaning promptly forms one or more irregular thrust 420 at the periphery of miniature shrinkage pool 410.
So, the thrust 420 of miniature shrinkage pool 410 peripheries will fall in the miniature shrinkage pool 410 because of bending or avalanche, and fill up miniature shrinkage pool 410, cause the deterioration of leading rotary light performance of light guide plate 500.
More even, because slag splash phenomenon, these a little thrusts 420 may have type outside the barb, so, when light guide plate 500 is installed in the display device, and when coinciding mutually with other blooming, the thrust 420 of light guide plate 500 fits tightly unfavorable these a little bloomings and light guide plate, and weakened light extraction efficiency, and perhaps, the thrust 420 of light guide plate 500 even cause these a little bloomings therefore by scratch or puncture.
This shows that the optical microstructures of above-mentioned light guide plate 500 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 technical issues that need to address of the present invention have provided a kind of light guide plate, are intended to solve the above problems.
The present invention also provides the backlight module that contains above-mentioned light guide plate.
The present invention also provides the display device that contains above-mentioned backlight module.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of light guide plate of the present invention comprises: a plate body; An and optical microstructures pattern; Described optical microstructures pattern distribution is the surperficial of this plate body and comprise a plurality of miniature shrinkage pools, wherein the periphery of each those miniature shrinkage pool has at least one depressed part is arranged, this depressed part has a melt surface, and the degree of depth of each those depressed part is less than the degree of depth of this miniature shrinkage pool.
Another kind of light guide plate of the present invention comprises: a plate body; An and optical microstructures pattern; Described optical microstructures pattern distribution is on the surface of this plate body and comprise a plurality of miniature shrinkage pools; Wherein 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.
A kind of backlight module of the present invention comprises: a light source; An and light guide plate; Described light guide plate comprises: a plate body; Described plate body comprises: an incidence surface; This incidence surface receives the light of this light source; An and exiting surface; An and optical microstructures pattern; Described optical microstructures pattern distribution is on the surface of this plate body and comprise a plurality of by miniature shrinkage pool that laser beam formed, wherein the periphery of each those miniature shrinkage pool is a plurality of by the depressed part that laser beam formed around having, and the degree of depth of each those depressed part is less than the degree of depth of this miniature shrinkage pool.
Another kind of backlight module of the present invention comprises: a light source; An and light guide plate; Described light guide plate comprises: a plate body; Described plate body comprises: an incidence surface, and this incidence surface receives the light of this light source; An and exiting surface; An and optical microstructures pattern; Described optical microstructures pattern distribution is on the surface of this plate body and comprise a plurality of by miniature shrinkage pool that laser beam formed, wherein 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.
Display device of the present invention comprises: one of them backlight module of above-mentioned two backlight modules, a display panel; An and blooming; Described blooming coincides on this optical microstructures pattern and between this backlight module and this display panel.
Compared with prior art, the invention has the beneficial effects as follows: 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 make the rotary light performance of leading of optical microstructures cause deterioration after avoiding light guide plate to complete.In addition, after light guide plate of the present invention is installed and put in the display, improved the applying tight ness rating of light guide plate and blooming, kept good light extraction efficiency, avoided destroying blooming simultaneously and improve life of product.
Description of drawings
The 1st figure illustrates the vertical view (a) and the cut-open view (b) of miniature shrinkage pool tool crater outward appearance in the prior art.
The 2nd figure illustrates the present invention bombards the thrust of miniature shrinkage pool periphery in regular turn by laser beam operation chart.
The 3rd figure illustrates the schematic appearance of light guide plate of the present invention.
Wherein miniature shrinkage pool among the regional M of one of optical microstructures pattern that the 4th figure illustrates light guide plate of the present invention is at the vertical view of an embodiment.
The 5th figure illustrates the 5-5 cut-open view of the 4th figure.
Wherein miniature shrinkage pool among the regional M of one of optical microstructures pattern that the 6th figure illustrates light guide plate of the present invention is at the vertical view of another embodiment.
The 7th figure illustrates the 7-7 cut-open view of the 6th figure.
Wherein miniature shrinkage pool among the regional M of one of optical microstructures pattern that the 8th figure illustrates light guide plate of the present invention is at the cut-open view of another embodiment.
Wherein miniature shrinkage pool among the regional M of one of optical microstructures pattern that the 9th figure illustrates light guide plate of the present invention is at the cut-open view of an embodiment again.
The 10th figure illustrates the synoptic diagram of display device of the present invention at an embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
The present invention discloses a kind of light guide plate, has the backlight module and the display of light guide plate, provides the good rotary light performance of leading in order to the optical microstructures pattern by the light guide plate surface.
The present invention discloses a kind of light guide plate, has the backlight module and the display of light guide plate, fills up the chance of miniature shrinkage pool because of coming off in order to the thrust that reduces miniature shrinkage pool periphery.
The present invention discloses a kind of light guide plate, has the backlight module and the display of light guide plate, in order to reduce or even to avoid the coincide chance of the blooming on it of light guide plate scratch or puncture in display device.
It is to disclose a kind of light guide plate that one of the present invention implements aspect.Light guide plate comprises a plate body and an optical microstructures pattern.The optical microstructures pattern distribution is on the surface of plate body.The optical microstructures pattern comprises a plurality of miniature shrinkage pools.The periphery of each miniature shrinkage pool is around at least one depressed part is arranged.The surface of each depressed part has melt surface.The degree of depth of each depressed part is less than the degree of depth of miniature shrinkage pool.
This implements among one of the aspect embodiment, and 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 implements among another embodiment of aspect, and the bore of each those depressed part is less than the bore of this miniature shrinkage pool.The bore of each those depressed part is greater than the bore of this miniature shrinkage pool.
This implements among the another embodiment of aspect, and each miniature shrinkage pool is not had a crater outward appearance.
It is to disclose a kind of light guide plate that another of the present invention implemented aspect.Light guide plate comprises a plate body and an optical microstructures pattern.The optical microstructures pattern distribution is on the surface of plate body.The optical microstructures pattern comprises a plurality of miniature shrinkage pools.The periphery of each miniature shrinkage pool has at least one a plurality of thrust, and the end face of the peripheral surface of each miniature shrinkage pool and thrust thereof all has melt surface.For example melt surface is to burn vestige by what laser beam treatment was crossed.
The present invention's another enforcement aspect is to disclose a kind of backlight module.Backlight module comprises a light source and a light guide plate.Light guide plate comprises a plate body and an optical microstructures pattern.Plate body comprises an incidence surface and an exiting surface.Light source is positioned at one of incidence surface side, so that incidence surface receives the light of light source.The optical microstructures pattern comprises a plurality of by miniature shrinkage pool that laser beam formed.The periphery of each miniature shrinkage pool is a plurality of by depressed part that laser beam formed around having.The degree of depth of each depressed part is less than the bore of the degree of depth of miniature shrinkage pool and each depressed part bore less than miniature shrinkage pool.
A kind of backlight module of another enforcement aspect system's exposure of the present invention.This backlight module comprises a light source and a light guide plate.Light guide plate comprises a plate body and an optical microstructures pattern.Plate body comprises an incidence surface and an exiting surface.Light source is positioned at one of incidence surface side, so that incidence surface receives the light of light source.The optical microstructures pattern comprises a plurality of by miniature shrinkage pool that laser beam formed.The periphery of each miniature shrinkage pool has at least one thrust, and the end face of the periphery of miniature shrinkage pool and thrust thereof all has a melt surface.For example melt surface is to burn vestige by what laser beam treatment was crossed.
The present invention's another enforcement aspect is to disclose a kind of display device.Display device comprises an aforementioned wherein backlight module, at least one blooming and a display panel.Blooming coincides on this optical microstructures pattern, between this backlight module and this display panel.
Above-mentioned respectively enforcement among one of aspect embodiment, the material of light guide plate is polyethylene terephthalate, polycarbonate or polymethylmethacrylate.
As mentioned above, utilize laser beam that the high temperature irradiation is carried out on the light guide plate surface and will cause slag splash phenomenon unavoidablely, see so that each miniature shrinkage pool place forms outside crater, will cause the thrust of crater periphery may drop in the miniature shrinkage pool, and the deterioration light guide plate lead rotary light performance.
For this reason, see also shown in the 2nd figure, the 2nd figure illustrates the present invention bombards the thrust 420 of miniature shrinkage pool 410 peripheries in regular turn by laser beam 300 operation chart, light guide plate 500 of the present invention is to produce laser beam 300 by radium-shine generator 100, carbon dioxide radium-shine (CO2 Laser) 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 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 light guide plate 500 of the present invention.
The present invention's light guide plate 500 comprises a plate body 501 and an optical microstructures pattern P.The optical microstructures pattern P is distributed in the surface of plate body 501, is directly to process by the surface of laser beam at plate body 501.
Among this embodiment, plate body 501 is rectangular, has relative first 510 and second 520, and around and connect first 510 and second 520 four the 3rd 530.Be called plate body 501 for the 3rd 530 and can present one side of thickness, and arbitrary the 3rd 530 area is all less than first 510 or second 520 area.As a rule, first 510 and second 520 of plate body 501 can be designed to an exiting surface, and plate body 501 wherein be designed to an incidence surface for one the 3rd 530.The optical microstructures pattern P is not got rid of incidence surface, exiting surface or incidence surface and the exiting surface that is distributed in plate body 501.
The material of this light guide plate 500 for example is polyethylene terephthalate (polyethylene Terephthalate, PET), polycarbonate (polycarbonate, PC) or polymethylmethacrylate (Poly (methyl methacrylate) PMMA) waits transparent material.
In addition, type (for example being sheet shape or curling shape) also can determine because of the selection of its thickness size or its soft or hard degree outside the light guide plate 500.
See also shown in the 4th figure and the 5th figure vertical view of a wherein miniature shrinkage pool 410 under an embodiment among the regional M of one of optical microstructures pattern P that the 4th figure illustrates light guide plate 500 of the present invention.The 5th figure illustrates the 5-5 cut-open view of the 4th figure.
The optical microstructures pattern P comprises a plurality of miniature shrinkage pools 410 (being optical microstructures) and arranges 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 plate body 501 sunken insides thrust 421 (in detail as hereinafter) or aforementioned both and deposit.
So, because the reduced size of each thrust 420 at crater or remove, no longer keep its original height, therefore, reduce widely these a little residual thrusts because of bending or avalanche fall to the interior probability of miniature shrinkage pool 410, so, and then reduce the probability of leading the rotary light performance deterioration that causes light guide plate 500.
Known to last, depressed part 430 also is to form (the 2nd (b) figure) by 300 fusions of laser beam, therefore, each depressed part 430 surface (comprising outside surface and inside 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 of miniature shrinkage pool 410, and the bore of each depressed part 430 is less than the bore (the 5th figure) of miniature shrinkage pool 410.Certainly, the bore of each depressed part 430 also can be greater than the bore of miniature shrinkage pool 410.Described melt surface 450 for example presents and burns (Huang or black) vestige.Specifically, the degree of burning vestige changes by the periphery (comprising depressed part 430) of miniature shrinkage pool 410 towards away from the direction of miniature shrinkage pool 410 gradually from depth to shallow.Also we can say, melt surface 450 be with the ripples shape by the periphery (comprising depressed part 430) of miniature shrinkage pool 410 towards gradually from depth to shallow away from the direction of miniature shrinkage pool 410.
The present invention does not limit the arrangement mode of optical microstructures, for example is even or non-homogeneous, or for example arranges in the array mode or arrange with linear mode.Those skilled in the art can be selected or be adjusted the arrangement mode of optical microstructures according to actual demand or restriction.
The present invention more discloses more embodiment further to illustrate the variations in detail of each miniature shrinkage pool 410 periphery of the present invention.
It is described to consult the 2nd figure, the 4th figure and the 5th figure again, when the present invention bombards the thrust 420 at crater according to an embodiment, because radium-shine 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 on 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 plate body 501 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 vertical view of a wherein miniature shrinkage pool 410 under another embodiment among the regional M of one of optical microstructures pattern P that the 6th figure illustrates light guide plate 500 of the present invention.The 7th figure illustrates the 7-7 cut-open view of the 6th figure.
When the present invention bombards the thrust 420 at crater according to another embodiment (the 2nd figure), because radium-shine generator 100 is with each miniature shrinkage pools 410 bombardment of 300 pairs of laser beam 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 plate body 501 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 plate body 501 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 light guide plate 500 is done; still the residual a little dust of possibility, particle or material are considered to be worth doing on the light guide plate 500; 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 to explain is, because the more miniature shrinkage pool of depressed part 430 (or annular recessed portion 440) 410 is shallow, does not therefore provide the function of directing light, therefore, even if filled up by these a little dusts, particle or material bits, still can not influence the optical performance of light guide plate 500.
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 crater outward appearance at each miniature shrinkage pool 410 place to have the outward appearance at crater, therefore, does not have described shortcoming of prior art and inconvenience.
See also shown in the 2nd figure, the 8th figure, the wherein miniature shrinkage pool 410 among the regional M of one of optical microstructures pattern P that the 8th figure illustrates light guide plate 500 of the present invention is at the cut-open view of another embodiment.
When the present invention bombards the thrust 420 at crater according to another embodiment (the 2nd figure), by radium-shine generator 100 is adjusted suitable parameter (for example umber of pulse of miniwatt or small frequency), when radium-shine 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 crater, meaning is that plate body 501 surfaces connect side outside the depressed parts 430 and have roughly planar portions 423 with plate body 501 flush.
Because each miniature shrinkage pool 410 has not been had the crater outward appearance, can get rid of thrust 420 (the 1st figure) and take place because of bending or avalanche fall to miniature shrinkage pool 410 interior situations, so, and then reduction causes the probability of leading the rotary light performance deterioration of light guide plate 500.
See also shown in the 2nd figure, the 9th figure, the wherein miniature shrinkage pool 410 among the regional M of one of optical microstructures pattern P that the 9th figure illustrates light guide plate 500 of the present invention is at the cut-open view of an embodiment again.
When the present invention bombards the thrust 420 at crater according to an embodiment again (the 2nd figure), by radium-shine generator 100 is adjusted suitable parameter (for example umber of pulse of miniwatt or small frequency), when radium-shine 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 plate body 501 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.Melt surface 450 for example burns (Huang or black) vestige for presenting.It can be towards away from the direction of miniature shrinkage pool 410 gradually from depth to shallow by the periphery of miniature shrinkage pool 410 that the degree of burning vestige changes.
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, and then reduction causes the probability of leading the rotary light performance deterioration of light guide plate 500.
Recognize, owing to the thrust 421 of above-mentioned reduced size is bombarded by laser beam 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, the 10th figure illustrates the synoptic diagram of display device 900 of the present invention at an embodiment.The present invention discloses a kind of display device 900 again.Display device 900 comprises a backlight module 910, at least one blooming 930 and a display panel 940.Backlight module 910 comprises a light source 920 and the above-mentioned light guide plate 500 of the present invention.Light source 920 is positioned at one of the incidence surface of plate body 501 side, receives the light of light source 920 for incidence surface.Light source 920 light emitting diode (LED) of for example serving as reasons is gathered and is formed.Blooming 930 coincides on the optical microstructures pattern P of light guide plate 500, and between backlight module 910 and display panel 940.
So, because the reduced size of each thrust 420 at the crater of miniature shrinkage pool 410 or remove, no longer keep its original height, therefore, the present invention can promote the optical microstructures pattern P of light guide plate 500 and the degree of fitting tightly of blooming 930, to strengthen the amount of light input blooming 930, just can keep good light extraction efficiency, the present invention simultaneously can reduce scratch or puncture the probability of above-mentioned blooming 930, and then avoids destroying blooming 930 and improve life of product.
In sum, light guide plate of the present invention 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 make the rotary light performance of leading of optical microstructures cause deterioration after avoiding light guide plate to complete.In addition, after light guide plate of the present invention is installed and put in the display, improved the applying tight ness rating of light guide plate and blooming, kept good light extraction efficiency, avoided destroying blooming simultaneously and improve life of product.
The present invention discloses among as above each embodiment; be not in order to limiting the present invention, anyly have the knack of this skill, without departing from the spirit and scope of the invention; when can doing various changes and retouching, so the present invention's protection domain is when looking being as the criterion of appended claim protection domain institute circle.
Claims (12)
1. a light guide plate comprises: a plate body; An and optical microstructures pattern; It is characterized in that: described optical microstructures pattern distribution is the surperficial of this plate body and comprise a plurality of miniature shrinkage pools, wherein the periphery of each those miniature shrinkage pool has at least one depressed part is arranged, this depressed part has a melt surface, and the degree of depth of each those depressed part is less than the degree of depth of this miniature shrinkage pool.
2. light guide plate according to claim 1 is characterized in that: an annular recessed portion is connected so that formed to a plurality of these at least one depressed parts mutually.
3. light guide plate according to claim 1 is characterized in that: a plurality of these at least one depressed parts are not connected mutually, and are provided with at each interval.
4. light guide plate according to claim 1 is characterized in that: the bore of each those depressed part is less than the bore of this miniature shrinkage pool.
5. light guide plate according to claim 1 is characterized in that: the bore of each those depressed part is greater than the bore of this miniature shrinkage pool.
6. light guide plate according to claim 1 is characterized in that: the burn vestige of this melt surface for crossing via laser beam treatment.
7. light guide plate according to claim 1 is characterized in that: each those miniature shrinkage pool is not had a crater outward appearance.
8. a light guide plate comprises: a plate body; An and optical microstructures pattern; It is characterized in that: described optical microstructures pattern distribution is on the surface of this plate body and comprise a plurality of miniature shrinkage pools; Wherein 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.
9. light guide plate according to claim 8 is characterized in that: the burn vestige of this melt surface for crossing via laser beam treatment.
10. a backlight module comprises: a light source; An and light guide plate; It is characterized in that: described light guide plate comprises: a plate body; Described plate body comprises: an incidence surface; This incidence surface receives the light of this light source; An and exiting surface; An and optical microstructures pattern; Described optical microstructures pattern distribution is on the surface of this plate body and comprise a plurality of by miniature shrinkage pool that laser beam formed, wherein the periphery of each those miniature shrinkage pool is a plurality of by the depressed part that laser beam formed around having, and the degree of depth of each those depressed part is less than the degree of depth of this miniature shrinkage pool.
11. a backlight module comprises: a light source; An and light guide plate; It is characterized in that: described light guide plate comprises: a plate body; Described plate body comprises: an incidence surface, and this incidence surface receives the light of this light source; An and exiting surface; An and optical microstructures pattern; Described optical microstructures pattern distribution is on the surface of this plate body and comprise a plurality of by miniature shrinkage pool that laser beam formed, wherein 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.
12. a display device is characterized in that comprising: as claim 10 or 11 described backlight modules, a display panel; An and blooming; Described blooming coincides on this optical microstructures pattern and between this backlight module and this display panel.
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| CN 201110043885 CN102073091A (en) | 2011-02-22 | 2011-02-22 | Light guide plate, backlight module and display device thereof |
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| CN 201110043885 CN102073091A (en) | 2011-02-22 | 2011-02-22 | Light guide plate, backlight module and display device thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106547045A (en) * | 2017-01-12 | 2017-03-29 | 苏州向隆塑胶有限公司 | Light guide plate, backlight module and optical microstructures processing method |
| CN114609719A (en) * | 2022-01-17 | 2022-06-10 | 达运精密工业股份有限公司 | Display module, backlight module and high-gain light guide plate thereof |
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