CN202794589U - Beam splitting film and light guide plate with same - Google Patents
Beam splitting film and light guide plate with same Download PDFInfo
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- CN202794589U CN202794589U CN 201220447849 CN201220447849U CN202794589U CN 202794589 U CN202794589 U CN 202794589U CN 201220447849 CN201220447849 CN 201220447849 CN 201220447849 U CN201220447849 U CN 201220447849U CN 202794589 U CN202794589 U CN 202794589U
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- guide plate
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Abstract
The utility model discloses a beam splitting film and a light guide plate with the same. The light guide plate comprises a light guide plate body and the beam splitting film, the light guide plate body comprises a body light inputting surface and a body light emitting surface, the body light inputting surface faces towards at least one point light source, the body light emitting surface is spaced with the body light inputting surface, and light rays of the point light source are emitted through the body light emitting surface. The beam splitting film comprises a first surface, a second surface, a plurality of microstructures and a plurality of sub-microstructures, the first surface is attached to the body light inputting surface, the second surface faces towards the point light source, the microstructures are arranged at intervals and protruded from the second surface to the point light source, the sub-microstructures are protruded out of the second surface and the surfaces of the microstructures, and the light rays of the point light source penetrate through the sub-microstructures, the microstructures and the first surface to enter into the light guide plate body. By means of the microstructures and the sub-microstructures of the light splitting film, the light rays of the point light source can enter into the light guide plate uniformly.
Description
Technical field
The utility model relates to a kind of spectro-film and light guide plate, refers to especially a kind of spectro-film for side light type back light module and light guide plate.
Background technology
Liquid crystal panel is applied in now the life widely, such as: the electronic products such as mobile phone, notebook computer, personal computer and TV.Yet, because liquid crystal panel itself is not luminous, so generally adopt backlight module that the liquid crystal panel light source is provided, reach the effect that liquid crystal panel shows.
And general backlight module can be divided into two kinds, and a kind of is direct type backlight module, and another kind is side light type back light module.Side light type back light module mainly comprises light source, light guide plate, and several blooming pieces.The major function of light guide plate is the direction of guiding light, and makes the light that penetrates from light guide plate, can reach the uniform effect of brightness.And, a kind of light source of backlight module commonly used is light emitting diode (LED), LED has the characteristic of pointolite, and under energy-conservation and cost control, reduce by LED number, make easily LED light when being incident in light guide plate surperficial, cause the lead exiting surface of blooming piece of light bright secretly inhomogeneous, produce hot spot phenomenon (hotspot), make light scatter inhomogeneous and cause the bright spot of not expecting.Light guide plate can arrange on the surface microstructure improving hot spot phenomenon in the past, yet the effect that obtains remains limited.
Summary of the invention
A purpose of the present utility model is to provide a kind of light guide plate that reduces hot spot phenomenon.
The utility model light guide plate comprises a light conducting plate body and a spectro-film.
This light conducting plate body comprises a body incidence surface towards at least one pointolite, and one with the body exiting surface at this body incidence surface interval, this light conducting plate body makes the light of this pointolite penetrate through this body exiting surface.
This spectro-film comprises that a first surface that is attached at this body incidence surface, a second surface towards this pointolite, several intervals arrange and the microstructure protruded towards this pointolite of this second surface certainly, reach several and protrude from the inferior microstructure of this second surface and described micro-structure surface, the light of this pointolite passes described microstructure, described microstructure, this second surface and this first surface and enters this light conducting plate body.
Preferably, the ultimate range that each microstructure protrudes from this second surface is 0.05 to 0.5mm, and to protrude from the ultimate range of corresponding micro-structure surface be 10 to 200nm to microstructure each time.
Preferably, this first surface to the vertical range of this second surface is 0.05 to 0.5mm.
Preferably, a kind of enforcement aspect of the utility model light guide plate, the section of vertical this first surface of each microstructure is waveform.
Preferably, the another kind of the utility model light guide plate is implemented aspect, and the section of vertical this first surface of each microstructure is triangle, and per two microstructures to be right after be one group, each organizes each interval.
Preferably, protrude from the inferior microstructure of described microstructure, the section of its vertical this first surface is semicircle, protrudes from the inferior microstructure of this second surface, and the section of its vertical this first surface is triangle.
Preferably, no matter be any enforcement aspect, the section of vertical this first surface of microstructure is semicircle or triangle each time.
Preferably, this spectro-film be attached at the mode of this light conducting plate body be with optical cement in conjunction with or UV adhesive curing combination.
Another purpose of the present utility model is to provide a kind of light of pointolite that makes can more evenly enter the spectro-film of a light conducting plate body.
The utility model spectro-film is used for being attached at this light conducting plate body, and comprises a first surface, a second surface, several microstructures and several times microstructure.
This first surface is used for being attached at this light conducting plate body.This second surface is in contrast to this first surface and towards this pointolite.Described microstructure interval arrange and certainly this second surface protrude towards this pointolite.Described time microstructure protrudes from this second surface and described micro-structure surface.The light of this pointolite passes described microstructure, described microstructure, this second surface and this first surface and enters this light conducting plate body.
Preferably, the ultimate range that each microstructure protrudes from this second surface is 0.05 to 0.5mm, and to protrude from the ultimate range of corresponding micro-structure surface be 10 to 200nm to microstructure each time.
Preferably, this first surface to the vertical range of this second surface is 0.05 to 0.5mm.
Preferably, a kind of enforcement aspect of the utility model spectro-film, the section of vertical this first surface of each microstructure is waveform.
Preferably, the another kind of the utility model spectro-film is implemented aspect, and the section of vertical this first surface of each microstructure is triangle, and per two microstructures to be right after be one group, each organizes each interval.
Preferably, protrude from the inferior microstructure of described microstructure, the section of its vertical this first surface is semicircle, protrudes from the inferior microstructure of this second surface, and the section of its vertical this first surface is triangle.
Preferably, the section of vertical this first surface of microstructure is semicircle or triangle each time.
The beneficial effects of the utility model are: utilize the described microstructure of this spectro-film and described microstructure to make the light of this pointolite can evenly enter this light conducting plate body, and then reduced because light scatters inequality, this body exiting surface penetrates the hot spot phenomenon that light produces certainly.
Description of drawings
Fig. 1 is the schematic perspective view of the preferred embodiment of the utility model light guide plate;
Fig. 2 is the decomposing schematic representation of this preferred embodiment;
Fig. 3 is the schematic perspective view of spectro-film in this preferred embodiment;
Fig. 4 is the vertical view of this spectro-film;
Fig. 5 is the partial enlarged drawing of this preferred embodiment;
Fig. 6 is the schematic perspective view of another enforcement aspect of this spectro-film;
Fig. 7 is the vertical view of another enforcement aspect of this spectro-film.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
Before the utility model is described in detail, be noted that in the following description content similarly element is to represent with identical numbering.
Consult Fig. 1, Fig. 2 and Fig. 3, the preferred embodiment of the utility model light guide plate comprises a light conducting plate body 1 and a spectro-film 2, spectro-film 2 is to be made by crystallization or noncrystalline macromolecular material, for example be polymethyl methacrylate (PMMA) glue, and more specifically adopt FL-069 (viscosity (cps) 250) and the FL-020 (viscosity (cps) 500) of forever wide production, but be not limited with this model.So the method for making of this light conducting plate body 1 with made identical the repeating no more of light guide plate be applied to backlight module in the past, and this spectro-film 2 is to utilize the heat pressing type nanometer embossing to make, and mainly be divided into the two large divisions, first part is the die of making first this spectro-film 2, second portion in the mode of this die with hot-pressing transfer printing, is finished the making of present embodiment spectro-film 2 again.Finish respectively after the making of this light conducting plate body 1 and this spectro-film 2, again with this spectro-film 2 with optical cement in conjunction with or the mode of UV adhesive curing combination be attached at this light conducting plate body 1.
Next, the concrete structure of this preferred embodiment is described, this light conducting plate body 1 comprises a body incidence surface 11 and one and the body exiting surface 12 at these body incidence surface 11 intervals.This body incidence surface 11 is towards several arrangements pointolite 3 in line, and described pointolite 3 is LED and be arranged in parallel with this body incidence surface 11, the light that makes described pointolite 3 from this body incidence surface 11 enter this light conducting plate body 1 interior after, penetrate through this body exiting surface 12 again.And in this preferred embodiment of practical application during in the backlight module (not shown), provide again follow-up utilization after the light that penetrates of this body exiting surface 12 can enter the blooming piece (not shown) certainly.
Consult Fig. 2, Fig. 3 and Fig. 4, this spectro-film 2 comprises that a first surface 21 that is attached at this body incidence surface 11, a second surface 22 towards described pointolite 3, several intervals arrange and the microstructure 23 protruded towards this pointolite 3 of this second surface 22 certainly, and several protrude from the inferior microstructure 24 on this second surface 22 and described microstructure 23 surfaces.This first surface 21 is two opposing faces with this second surface 22.This first surface 21 to the vertical range L of this second surface 22 be 0.05 to 0.5mm, when light by the time light loss less, and the attaching that is attached at this body incidence surface 11 is puted forth effort better.The section of each microstructure 23 vertical these first surface 21 is waveform, and described microstructure 23 is that closely adjacent mode is arranged, and each microstructure 23 ultimate range D of protruding from this second surface 22 is 0.05 to 0.5mm, and optical effect is better.The section of microstructure 24 vertical these first surfaces 21 is semicircle or triangle each time, described microstructure 24 is that closely adjacent mode is arranged, and to protrude from the ultimate range W on corresponding microstructure 23 surfaces be 10 to 200nm to microstructure 24 each time, and optical effect is better.Be noted that, above-mentioned microstructure 23 and the section shape of time microstructure 24 or arrangement mode be not as limit, microstructure 23 and time microstructure 24 that other shape and arrangement also can be arranged, for example the utility model also has another to implement aspect: consult Fig. 6 and Fig. 7, the section of each microstructure 23 vertical these first surface 21 is triangle, and it is one group that per two microstructures 23 are right after, each organizes each interval, protrude from the inferior microstructure 24 of described microstructure 23, the section of its vertical this first surface 21 is semicircle, protrude from the inferior microstructure 24 of this second surface 22, the section of its vertical this first surface 21 is triangle.
Consult Fig. 4 and Fig. 5, the light that described pointolite 3 sends sequentially passes microstructure 24, described microstructure 23, this second surface 22 and this first surface 21 described time, then passing this body incidence surface 11 from this first surface 21 enters in this light conducting plate body 1, and be provided with the mechanism of destroying total reflection by this light conducting plate body 1, with the ray guidance of described pointolite 3 direction towards this body exiting surface 12, the light that last described pointolite 3 sends will pass from this body exiting surface 12.And from passing described microstructure 24 to the process that passes this body exiting surface 12, because the design of described microstructure 23 and described microstructure 24, the light that described pointolite 3 is sent can enter this light conducting plate body 1 more uniformly at light.
In sum, body incidence surface 11 in this light conducting plate body 1 attaches this spectro-film 2, and make this spectro-film 2 be positioned at 3 of this light conducting plate body 1 and described pointolites, see through again the described microstructure 23 of this spectro-film 2 and the design of described microstructure 24, the light that allows described pointolite 3 penetrate can enter this light conducting plate body 1 more uniformly, in addition, can also reduce the number of LED pointolite 3 and reduce cost, so really can reach the purpose of this utility model.
Claims (15)
1. a light guide plate comprises a light conducting plate body, it is characterized in that:
This light conducting plate body comprises a body incidence surface towards at least one pointolite, and one with the body exiting surface at this body incidence surface interval, this light conducting plate body makes the light of this pointolite penetrate through this body exiting surface;
This light guide plate also comprises a spectro-film, this spectro-film comprises that a first surface that is attached at this body incidence surface, a second surface towards this pointolite, several intervals arrange and the microstructure protruded towards this pointolite of this second surface certainly, reach several and protrude from the inferior microstructure of this second surface and described micro-structure surface, the light of this pointolite passes described microstructure, described microstructure, this second surface and this first surface and enters this light conducting plate body.
2. light guide plate according to claim 1 is characterized in that: the ultimate range that each microstructure protrudes from this second surface is 0.05 to 0.5mm, and to protrude from the ultimate range of corresponding micro-structure surface be 10 to 200nm to microstructure each time.
3. light guide plate according to claim 2 is characterized in that: this first surface of described spectro-film to the vertical range of this second surface is 0.05 to 0.5mm.
4. light guide plate according to claim 3 is characterized in that: the section of vertical this first surface of each microstructure is waveform.
5. light guide plate according to claim 3 is characterized in that: the section of vertical this first surface of each microstructure is triangle, and per two microstructures to be right after be one group, each organizes each interval.
6. light guide plate according to claim 5 is characterized in that: protrude from the inferior microstructure of described microstructure, the section of its vertical this first surface be semicircle, protrudes from the inferior microstructure of this second surface, its vertically the section of this first surface be triangle.
7. each described light guide plate in 5 according to claim 1, it is characterized in that: the section of vertical this first surface of microstructure is semicircle or triangle each time.
8. light guide plate according to claim 7 is characterized in that: the mode that this spectro-film is attached at this light conducting plate body be with optical cement in conjunction with or UV adhesive curing combination.
9. spectro-film, be used for being attached at a light conducting plate body, it is characterized in that: this spectro-film comprises that a first surface that is used for being attached at this light conducting plate body, arranges in contrast to this first surface and towards second surface, several intervals of at least one pointolite and the microstructure protruded towards this pointolite of this second surface certainly, reach several and protrude from the inferior microstructure of this second surface and described micro-structure surface, the light of this pointolite passes described microstructure, described microstructure, this second surface and this first surface and enters this light conducting plate body.
10. spectro-film according to claim 9 is characterized in that: the ultimate range that each microstructure protrudes from this second surface is 0.05 to 0.5mm, and to protrude from the ultimate range of corresponding micro-structure surface be 10 to 200nm to microstructure each time.
11. spectro-film according to claim 10 is characterized in that: this first surface to the vertical range of this second surface is 0.05 to 0.5mm.
12. spectro-film according to claim 11 is characterized in that: the section of vertical this first surface of each microstructure is waveform.
13. spectro-film according to claim 11 is characterized in that: the section of vertical this first surface of each microstructure is triangle, and per two microstructures to be right after be one group, each organizes each interval.
14. spectro-film according to claim 13 is characterized in that: protrude from the inferior microstructure of described microstructure, the section of its vertical this first surface is semicircle, protrudes from the inferior microstructure of this second surface, and the section of its vertical this first surface is triangle.
15. each described spectro-film in 13 according to claim 9, it is characterized in that: the section of vertical this first surface of microstructure is semicircle or triangle each time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447849 CN202794589U (en) | 2012-09-05 | 2012-09-05 | Beam splitting film and light guide plate with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447849 CN202794589U (en) | 2012-09-05 | 2012-09-05 | Beam splitting film and light guide plate with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202794589U true CN202794589U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220447849 Expired - Fee Related CN202794589U (en) | 2012-09-05 | 2012-09-05 | Beam splitting film and light guide plate with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202794589U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249342A (en) * | 2016-09-27 | 2016-12-21 | 上海向隆电子科技有限公司 | Light guide plate and the backlight module thereof of hot spot phenomenon can be eliminated |
| CN109358387A (en) * | 2018-12-02 | 2019-02-19 | 深圳市天诺通光电科技有限公司 | U-shaped structure high PS diffuser plate and its manufacture craft and application thoroughly |
-
2012
- 2012-09-05 CN CN 201220447849 patent/CN202794589U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249342A (en) * | 2016-09-27 | 2016-12-21 | 上海向隆电子科技有限公司 | Light guide plate and the backlight module thereof of hot spot phenomenon can be eliminated |
| CN109358387A (en) * | 2018-12-02 | 2019-02-19 | 深圳市天诺通光电科技有限公司 | U-shaped structure high PS diffuser plate and its manufacture craft and application thoroughly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130905 |