CN102072465A - Device and method for homogenizing light of polygonal light guiding structure formed by lapping - Google Patents
Device and method for homogenizing light of polygonal light guiding structure formed by lapping Download PDFInfo
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- CN102072465A CN102072465A CN200910226359XA CN200910226359A CN102072465A CN 102072465 A CN102072465 A CN 102072465A CN 200910226359X A CN200910226359X A CN 200910226359XA CN 200910226359 A CN200910226359 A CN 200910226359A CN 102072465 A CN102072465 A CN 102072465A
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Abstract
The invention relates to a device and method for homogenizing the light of a polygonal light guiding structure formed by lapping. The device comprises the polygonal light guiding structure which is composed of a plurality of backlight modules, wherein two adjacent backlight modules are connected by lapping; each backlight module at least comprises a light guiding plate; at least one light source is arranged on at least one side of the light guiding plate, so that the light source can be projected into the light guiding plate for conduction; at least one light-tight component is arranged between lapped positions of the two backlight modules to isolate the two backlight modules from each other, so that light rays conducted by two light guiding plates do not interfere with each other; the polygonal light guiding structure can be arranged in an inner space of a polygonal frame body; and a polygonal light-transmittable shade is arranged on an opening of the inner space by covering. The device and the method, which are provided by the invention, have the advantage of enabling the whole frame-shaped light guiding structure to reveal uniform luminance.
Description
Technical field
The present invention relates to a kind of backlight module, relate in particular to a kind of polygon light guide structure light-emitting device and method thereof that will overlap formation.
Background technology
In the modern society of being particular about quality of life, 3C Products such as electronics, electrical equipment and computer are also very paid attention to the construction on PRODUCT FORM DESIGN and the situation except the exploitation of function aspects.With general computer display, computer vendors may be provided with light-emitting device at the housing periphery of display, extremely dazzles or romantic situation to build; Or with described light-emitting device be applied to vehicle license frame, television cabin, audio-visual household electrical appliances display ... wait product.
What Fig. 1 and Fig. 2 were shown is the structure that is applied to the light-emitting device of rectangle framework in the prior art, it imitates the lamp sheet by four EL fields or four groups of backlight module 1 overlap joint group structures form a rectangle frame, the end that the LGP 11 of lamp sheet or backlight module is imitated in each EL field all is equipped with a light source 13, those light sources throw light respectively and enter lamp sheet or LGP, thereby produce illumination effect.
But light source launches light into wherein conduction because the LGP of each backlight module all has separately independently, therefore, the lap position A of two LGPs 11 can make brightness be higher than the position that other does not overlap because of the light quantity addition, and then causes the non-uniform light of whole framework; Especially be provided with reflector plate at LGP with respect to the another side of exiting surface and get, the brightness of its increase is more obvious; In addition, the position of overlap joint the more, whole uneven phenomenon is more outstanding.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of device that will overlap the polygon light guide structure luminenscence homogenization that forms, and are intended to solve the above problems;
The present invention also provides the method that adopts said structure.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The inventive system comprises: the polygon light guide structure that constitutes by plural backlight module, adjacent two backlight modules be connected to the overlap joint form, described backlight module includes a LGP at least, and at least one side of this LGP at least one the projection is set and enters the light source that conducts in the LGP; Be provided with the non-interfering light tight assembly of at least one light that makes two LGPs be conducted between the lap position of described two backlight modules;
Method of the present invention realizes by following steps:
The polygon light guide structure that constitutes by plural backlight module, adjacent two backlight modules be connected to the overlap joint form, described backlight module includes a LGP at least, and at least one side of this LGP at least one light source is set, and light source can be throwed enter conduction in the LGP;
With at least one light tight assembly described two backlight modules are separated between the lap position of described two backlight modules, make the light that two LGPs are conducted not disturb mutually.
Compared with prior art, the invention has the beneficial effects as follows: make whole shaped as frame light guide structure present uniform brightness.
Description of drawings
Fig. 1 is for showing the front schematic view of polygon light guide structure in the prior art.
Fig. 2 is for showing the side-looking cross-sectional schematic of polygon light guide structure in the prior art.
Fig. 3 is the sectional perspective exploded view of the combination of components relation of demonstration polygon light guide structure of the present invention.
Fig. 4 is for showing the side-looking cross-sectional schematic of polygon light guide structure of the present invention.
Fig. 5 is for showing the front schematic view of polygon light guide structure of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
Purpose of the present invention is to solve the shaped as frame light guide structure that is made of plural backlight module overlap joint group in the prior art, and the brightness meeting of its lap-joint is higher than other not brightness of lap-joint, so that whole shaped as frame light guide structure presents the problem of non-uniform light.
Feature of the present invention is to separate with light tight assembly between the lap position of two backlight modules that constitute the shaped as frame light guide structure, makes the light that two backlight modules are conducted not disturb mutually at its lap position; Just, each group illumination effect that backlight module produced is that the light source by this backlight module independently provides, and each luminosity of light source of organizing backlight module is all identical, thereby makes whole shaped as frame light guide structure present uniform brightness.
Based on this, technological means of the present invention, be to include the polygon light guide structure that constitutes by plural backlight module, adjacent two backlight modules be connected to the overlap joint form, described backlight module includes a LGP at least, and at least one light source is set at least one side of this LGP, light source can be throwed enter conduction in the LGP, with at least one light tight assembly described two backlight modules are separated between the lap position of described two backlight modules, make the light that two LGPs are conducted not disturb mutually, this polygon light guide structure can be located at the interior space of a polygon framework, and the opening in interior space covers a polygonal diffuser.
As preferable selection, the present invention is used for the light tight assembly that lap-joint with two backlight modules separates, and is a kind of diaphragm, and this diaphragm can be a kind of adhesive tape, also can be a kind of polyester film or similar light tight material.
As a kind of selection, method provided by the invention and structure are applicable to the corner location of polygon framework also to be applicable to the arbitrary position of polygonal straight flange.
As a kind of selection, method provided by the invention and structure, be applicable at LGP to be provided with a reflection subassembly with respect to the another side of its exiting surface or the backlight module of reflection subassembly is not set, and make described light tight assembly between the LGP of the reflection subassembly of a backlight module and another backlight module.
As a kind of selection, backlight module of the present invention, the LGP that it comprised can be the LGP of single chip architecture, also can be than the LGP of small size and connect the group structure and form the larger area LGP by plural number.
At first consult shown in Figure 3ly, the method and apparatus of the luminenscence homogenization that the invention provides is at the polygon light guide structure that adopts backlight module overlap joint formations, and its lap-joint can produce high brightness and make the improvement of whole formation non-uniform light.Described polygon light guide structure, include the polygon light guide structure that constitutes by plural backlight module 1, adjacent two backlight modules be connected to the overlap joint form, described backlight module 1 includes a LGP 11 at least, one side of this LGP 11 is as exiting surface 111, then be provided with respect to the another side of this exiting surface 111 and be used for the reflection subassembly 12 of reflection ray, one side of LGP 11 is then as incidence surface 112 and light source 13 is installed, described light source 13 is to adopt light emitting diode (LED) at embodiments of the invention, but light source 13 throw lights enter conduction in the LGP 11, and by reflection subassembly 12 part light are reflected and produces visual illumination effect from exiting surface 111.Described LGP 11 can be the monolithic form of the one-body molded manufacturing of full wafer, also can be the structure that is formed than the LGP splicing group structure of small size by plural number.
Fig. 3 is to shown in Figure 5 for another example, the present invention utilizes aforementioned plural backlight module 1 the overlap joint group to constitute polygonal light guide structure, for example, can cooperate the periphery of display and form the housing of rectangle, or the overlap joint group constitutes corresponding shape according to the specific profile appearance of other electrical appliance; The position of its overlap joint can be in polygonal corner location, also can be in the appropriate location of the straight flange of polygon.Because the light source 13 that each backlight module 1 all has separately launches light into its LGP conduction separately, so that can produce the mutual interference of light phase in the lap-joint of two LGPs, the brightness meeting that makes two LGPs produce increases because of overlapping, therefore, the present invention is provided with a light tight assembly 14 in overlap joint overlapping place of two LGPs 11 two LGPs 11 is isolated, the problem of the overall brightness inequality that the light phase mutual interference that two LGPs of being avoided overlapping are conducted is caused.The lap position of LGP 11 is when the polygon corner, and described light tight assembly 14 promptly is shaped in advance to profile that should the corner, and the shape of corresponding overlap joint overlapping position.When position at the polygon straight flange of the lap position of LGP 11, then light tight assembly 14 is shaped in advance to the profile that should the straight flange position and the shape of corresponding overlap joint overlapping position.At embodiments of the invention, described light tight assembly 14 is a kind of diaphragms, for example adhesive tape, polyester film etc., this light tight assembly 14 can stick together the following or reflection subassembly that is fixed in the LGP that is overlapped in the top below, also light tight assembly can be sticked together be fixed in the LGP that is overlapped in the below above.
After the present invention utilizes aforementioned plural backlight module to constitute the polygon light guide structure, when practical application, be to be combined in the framework 2 of a corresponding shape, and cover the diffuser 3 of a corresponding shape at the opening part of framework 2, the user can see the luminous visual effects of homogenising outward by diffuser 3, but can't see the backlight module under the diffuser.
The above only is in order to explain the present invention's preferred embodiment; be not that the attempt tool is to do any formal restriction to the present invention; so all have in following any modification or change of doing relevant the present invention of identical invention spirit, all must be included in the category of claim protection of the present invention.
Claims (16)
1. device that will overlap the polygon light guide structure luminenscence homogenization that forms, comprise: the polygon light guide structure that constitutes by plural backlight module, adjacent two backlight modules be connected to the overlap joint form, described backlight module includes a LGP at least, and at least one side of this LGP at least one the projection is set and enters the light source that conducts in the LGP; It is characterized in that: be provided with the non-interfering light tight assembly of at least one light that makes two LGPs be conducted between the lap position of described two backlight modules.
2. the device that will overlap the polygon light guide structure luminenscence homogenization that forms according to claim 1, it is characterized in that: described lap position is meant this polygonal corner location.
3. the device that will overlap the polygon light guide structure luminenscence homogenization that forms according to claim 1, it is characterized in that: described lap position is meant this arbitrary position of polygonal straight flange.
4. the device that will overlap the polygon light guide structure luminenscence homogenization that forms according to claim 1, it is characterized in that: described LGP is provided with a reflection subassembly with respect to the another side of its exiting surface, and described light tight assembly is between the LGP of the reflection subassembly of a backlight module and another backlight module.
5. according to claim 1 or 2 or the 3 or 4 described devices that will overlap the polygon light guide structure luminenscence homogenization that forms, it is characterized in that: also include a polygon framework that possesses interior space, described polygon light guide structure is the interior space of being located at this framework, and opening in space then covers a polygonal diffuser in this.
6. according to claim 1 or 2 or the 3 or 4 described devices that will overlap the polygon light guide structure luminenscence homogenization that forms, it is characterized in that: the LGP of described backlight module is a single structure.
7. according to claim 1 or 2 or the 3 or 4 described devices that will overlap the polygon light guide structure luminenscence homogenization that forms, it is characterized in that: the LGP of described backlight module is by plural LGP and connects the group structure and form.
8. method that will overlap the polygon light guide structure luminenscence homogenization of formation, realize by following steps:
The polygon light guide structure that constitutes by plural backlight module, adjacent two backlight modules be connected to the overlap joint form, described backlight module includes a LGP at least, and at least one side of this LGP at least one light source is set, and light source can be throwed enter conduction in the LGP;
With at least one light tight assembly described two backlight modules are separated between the lap position of described two backlight modules, make the light that two LGPs are conducted not disturb mutually.
9. the method that will overlap the polygon light guide structure luminenscence homogenization of formation according to claim 8, wherein, described light tight assembly is a kind of diaphragm.
10. the method that will overlap the polygon light guide structure luminenscence homogenization of formation according to claim 9, wherein, described diaphragm is a kind of adhesive tape.
11. the method that will overlap the polygon light guide structure luminenscence homogenization of formation according to claim 9, wherein, described diaphragm is a kind of polyester film.
12. the method that will overlap the polygon light guide structure luminenscence homogenization of formation according to claim 8, wherein, described lap position is meant this polygonal corner location.
13. the method that will overlap the polygon light guide structure luminenscence homogenization of formation according to claim 8, wherein, described lap position is meant this arbitrary position of polygonal straight flange.
14. the method that will overlap the polygon light guide structure luminenscence homogenization of formation according to claim 8, wherein, described LGP is provided with a reflection subassembly with respect to the another side of its exiting surface, and described light tight assembly is between the LGP of the reflection subassembly of a backlight module and another backlight module.
15. according to 8 to 14 each described methods that will overlap the polygon light guide structure luminenscence homogenization of formation of claim the, wherein, the LGP of described backlight module is a single structure.
16. according to 8 to 14 each described methods that will overlap the polygon light guide structure luminenscence homogenization of formation of claim the, wherein, the LGP of described backlight module be by plural LGP and connect the group structure form.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910226359XA CN102072465B (en) | 2009-11-20 | 2009-11-20 | Device and method for homogenizing light of polygonal light guiding structure formed by lapping |
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| CN200910226359XA CN102072465B (en) | 2009-11-20 | 2009-11-20 | Device and method for homogenizing light of polygonal light guiding structure formed by lapping |
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| CN102072465A true CN102072465A (en) | 2011-05-25 |
| CN102072465B CN102072465B (en) | 2013-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782806A (en) * | 2014-12-26 | 2016-07-20 | 博西华电器（江苏）有限公司 | Household appliance |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201218441Y (en) * | 2008-05-21 | 2009-04-08 | 瑞仪光电(苏州)有限公司 | Back light module unit |
| CN201531831U (en) * | 2009-11-20 | 2010-07-21 | 上海向隆电子科技有限公司 | Light uniformizing device of lapped polygonal light guide structure |
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2009
- 2009-11-20 CN CN200910226359XA patent/CN102072465B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782806A (en) * | 2014-12-26 | 2016-07-20 | 博西华电器（江苏）有限公司 | Household appliance |
| CN105782806B (en) * | 2014-12-26 | 2019-11-19 | 博西华电器（江苏）有限公司 | Household electrical appliance |
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| Publication number | Publication date |
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| CN102072465B (en) | 2013-03-27 |
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