CN201936026U - Light-guiding plate - Google Patents
Light-guiding plate Download PDFInfo
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- CN201936026U CN201936026U CN2011200314922U CN201120031492U CN201936026U CN 201936026 U CN201936026 U CN 201936026U CN 2011200314922 U CN2011200314922 U CN 2011200314922U CN 201120031492 U CN201120031492 U CN 201120031492U CN 201936026 U CN201936026 U CN 201936026U
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- Prior art keywords
- light guide
- guide plate
- light
- plate body
- location division
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- Planar Illumination Modules (AREA)
Abstract
The utility model relates to a light-guiding plate. The light-guiding plate comprises a plate body and at least one positioning part, wherein the plate body is provided with a light-emitting face, a light-reflecting face opposite to the light-emitting face, and at least one light-irradiating face contacting the light-emitting face and the light-reflecting face; and the positioning part is connected to at least one side of the plate body. The light-guiding plate has the beneficial effect that: light can be uniformly irradiated to the light-irradiating face in order to provide a uniform surface light source.
Description
Technical field
The utility model relates to a kind of light guide plate, relates in particular to this light conducting plate structure.
Background technology
The backlight module that the slimming liquid crystal indicator normally utilizes light emitting diode and light guide plate to constitute produces area source, with the illumination display panels.Generally speaking, the side (incidence surface) that can be arranged on light guide plate as the light emitting diode of pointolite is incided in the light guide plate so that light to be provided.Yet, incide in the light guide plate from the side of light guide plate in order successfully to make light, light emitting diode must be arranged on side with respect to light guide plate and be in the specific angular range, and cause assembling to be difficult for.In addition, along with the trend of the thickness attenuation of light guide plate, the area of the side of light guide plate diminishes, and makes to enter in the light guide plate from the more difficult side from light guide plate of the light of light emitting diode.
Fig. 1 is the synoptic diagram of the light guide plate of prior art.Please refer to Fig. 1, light guide plate 100 has exiting surface 112, reflective surface 114 and incidence surface 116.Normally utilize diel to cut out the light guide plate 100 of certain size.Yet, when carrying out punching press, tend to side formation burr 120 at the incidence surface 116 of light guide plate 100 for the light guide plate 100 of thinner thickness.By the enlarged drawing among Fig. 1, burr 120 protrude in the incidence surface 116 of light guide plate 100, and this can cause the optical effect of burr 120 near zones to be different from other regional optical effect, cause light can't enter light guide plate 100 equably.
In addition, the researcher is arranged when carrying out punching press for the light guide plate 100 of thinner thickness, the incidence surface 116 in light guide plate 100 forms array of optical elements (not illustrating) in the lump.Yet the process of punching press is easy to generate skew, the optical precision degree of formed array of optical elements is descended, and can't obtain the well array of optical elements of scattered beam.
Summary of the invention
The utility model technical issues that need to address have provided a kind of light guide plate, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
Light guide plate of the present utility model comprises: a plate body; Described plate body have an exiting surface, with a reflective surface of this exiting surface subtend and at least one incidence surface that contacts this exiting surface and this reflective surface; And
At least one location division; Described location division is connected at least one side of this plate body.
Compared with prior art, the beneficial effects of the utility model are: can make light equably the incident incidence surface so that uniform surface light source to be provided.
Description of drawings
Fig. 1 is the synoptic diagram of the light guide plate of prior art.
Fig. 2 is the schematic flow sheet of method for making of a kind of light guide plate of the utility model embodiment.
Fig. 3 is the synoptic diagram of light guide plate, orientation tool and the cutting tool of the utility model one embodiment.
Fig. 4 is the synoptic diagram of light guide plate, orientation tool and the cutting tool of another embodiment of the utility model.
Fig. 5～Fig. 8 is the synoptic diagram of four kinds of light guide plate of the utility model embodiment.
Fig. 9 is the synoptic diagram of a kind of light guide plate of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
The utility model provides a kind of method for making of light guide plate, can easily form the array of optical elements of high optical precision degree in the side of thickness light guide plate as thin as a wafer (incidence surface).
The utility model provides a kind of light guide plate, can improve the yield and the precision of light guide plate processing procedure.
The utility model proposes a kind of method for making of light guide plate, comprise the steps.At first, provide at least one light guide plate, this light guide plate comprises: plate body and at least one location division that is connected in plate body, wherein, plate body has exiting surface, with the reflective surface of exiting surface subtend and contact exiting surface and at least one incidence surface of reflective surface.Then, provide a location instrument, be coupled in the location division and fixed plate body.Afterwards, provide at least one cutting tool, the incidence surface of plate body is handled, and form array of optical elements at incidence surface.
In an embodiment of the present utility model, above-mentioned cutting tool comprises a plurality of microstructures, and the shape of these microstructures is corresponding to array of optical elements.
In an embodiment of the present utility model, the shape of above-mentioned microstructure comprises: semicircle, V font or R ditch.
In an embodiment of the present utility model, above-mentioned microstructure protrudes in the surface of this cutting tool.
In an embodiment of the present utility model, above-mentioned microstructure indent is in the surface of this cutting tool.
In an embodiment of the present utility model, the method for making of above-mentioned light guide plate more comprises: exiting surface or reflective surface at plate body form a leaded light pattern.
In an embodiment of the present utility model, above-mentioned location division comprises at least one perforation, and the shape of perforation is identical with the shape of orientation tool.
In an embodiment of the present utility model, the shape of above-mentioned perforation comprises circle, square, rectangle, ellipse and combination thereof.
In an embodiment of the present utility model, the method for making of above-mentioned light guide plate provides a plurality of light guide plate and these light guide plate of storehouse, utilizes cutting tool to form array of optical elements in each incidence surface of each plate body.
The utility model proposes a kind of light guide plate again, comprising: plate body and at least one location division.Plate body has exiting surface, with the reflective surface of exiting surface subtend and contact exiting surface and at least one incidence surface of reflective surface.The location division is connected at least one side of plate body.
In an embodiment of the present utility model, above-mentioned location division comprises at least one perforation.
In an embodiment of the present utility model, the shape of above-mentioned perforation comprises circle, square, rectangle, ellipse and combination thereof.
In an embodiment of the present utility model, above-mentioned light guide plate more comprises: a leaded light pattern is arranged at the exiting surface or the reflective surface of plate body.
In an embodiment of the present utility model, above-mentioned location division is connected in the corner location of plate body.
Based on above-mentioned, the method for making of light guide plate of the present utility model is suitable for making array of optical elements on the incidence surface of thickness light guide plate as thin as a wafer.The cutting tool that utilization has a microstructure cuts for the incidence surface of light guide plate, then can form the array of optical elements that flushes and not have burr at incidence surface.Be connected in the location division of plate body locating this light guide plate well, and can cut out the high array of optical elements of optical precision degree.The light guide plate of made can make light equably the incident incidence surface so that uniform surface light source to be provided.
Method for manufacturing light guide plate of the present utility model can form the array of optical elements of high optical precision degree at the incidence surface of thickness light guide plate as thin as a wafer, and can not form the burr that disturb light transmission.Moreover the light guide plate of utilizing the utility model to propose can promote the cutting precision of light guide plate and make yield.Below, will enumerate several embodiment and carry out related description.
[method for making of light guide plate]
Fig. 2 is the schematic flow sheet of method for making of a kind of light guide plate of the utility model embodiment.Fig. 3 is the synoptic diagram of light guide plate, orientation tool and the cutting tool of the utility model one embodiment.Please be simultaneously with reference to Fig. 2 and Fig. 3 method for making 200 with the light guide plate of understanding the utility model one embodiment.
At first, in step S210, at least one light guide plate 300 is provided, this light guide plate 300 comprises: plate body 310 and at least one location division 320 that is connected in plate body 310, wherein, plate body 310 have exiting surface 312, with the reflective surface 314 of exiting surface 312 subtends and at least one incidence surface 316 of contacting exiting surface 312 and reflective surface 314.About the detailed structure and the various possible example of light guide plate 300, can be referring to paragraph according to aftermentioned [light guide plate that secondary processing is used].
Then, in step S220, provide a location instrument 330, be coupled in location division 320 and fixed plate body 310.Above-mentioned location division 320 can comprise at least one perforation 322, and 322 the shape of boring a hole is identical with the shape of orientation tool 330.Certainly, also can on location division 320, a plurality of perforation 322 be set.In addition, the shape of perforation 322 also can be circular (as shown in Figure 3) shape in addition, as square, rectangle, ellipse etc.
Afterwards, in step S230, provide at least one cutting tool 340, the incidence surface 316 of plate body 310 is handled, and form array of optical elements OPA (being illustrated among Fig. 8) at incidence surface 316.
Above-mentioned cutting tool 340 can comprise a plurality of microstructures 342, and the shape of these microstructures 342 is corresponding to array of optical elements OPA (being illustrated in Fig. 8).
In addition, as shown in Figure 3, the shape of microstructure 342 can be semicircle, yet the shape of microstructure 342 also can be V font (not illustrating) or R ditch (not illustrating).Moreover as shown in Figure 3, microstructure 342 indents are in the surface of cutting tool 340, and still, in other embodiments, microstructure 342 also can be the surface (not illustrating) that protrudes in cutting tool 340.
The cutting tool 340 that utilization has microstructure 342 cuts for thickness light guide plate 300 as thin as a wafer; And, before cutting, utilize orientation tool 330 and location division 320 to fix plate body 310, thus, can carry out good cutting for light guide plate 300, incidence surface 316 in light guide plate 300 can form the array of optical elements OPA (being illustrated in Fig. 8) that flushes, and can not produce the known burr that utilize diel to produce at the incidence surface 316 of plate body 310.
Before step S230, can also utilize the hot pressing processing procedure, at the exiting surface 312 or the reflective surface 314 formation one leaded light pattern 350 of plate body 310.This leaded light pattern 350 can be according to the areal concentration height away from light source (not illustrating), and the principle low near the areal concentration of light source designs, so that uniform surface light source to be provided; Perhaps, leaded light pattern 350 also can carry out relevant design according to needed optical effect, to be distributed in exiting surface 312 or reflective surface 314.
It may be noted that also as shown in Figure 3, cutting tool 340 can use one or more, and cooperate the size of light guide plate 300 to cut once.Fig. 3 only illustrates the situation of using a plurality of cutting tools 340, when one of them cutting tool 340 damages, then can promptly substitute and promotes the maintenance efficiency of cutting tool 340.
Fig. 4 is the synoptic diagram of light guide plate, orientation tool and the cutting tool of another embodiment of the utility model.In this embodiment, can provide a plurality of light guide plate 300 and storehouse these light guide plate 300, utilize cutting tool 340 to form array of optical elements OPA (being illustrated among Fig. 8) in the incidence surface 316 of each plate body 310 once.The length that it may be noted that orientation tool 330 can extend, with the perforation 322 of the location division 320 of passing all light guide plate 300.Thus, the method for making of the light guide plate 300 that illustrates as Fig. 4, can promote light guide plate 300 processing quantity, shorten the processing procedure time, promote the efficient of cutting light guide plate 300.
It may be noted that among above-mentioned Fig. 3, Fig. 4, only handle and form array of optical elements OPA at the incidence surface 316 of plate body 310 1 sides; Yet, also can utilize cutting tool 340 to carry out required processing according to design requirement for the incidence surface 316 of other three sides.
[light guide plate that secondary processing is used]
Fig. 5～Fig. 8 is the synoptic diagram of four kinds of light guide plate of the utility model embodiment.Please earlier with reference to Fig. 3, light guide plate 300 can comprise: plate body 310 and at least one location division 320.Plate body 310 have exiting surface 312, with the reflective surface 314 of exiting surface 312 subtends and at least one incidence surface 316 of contacting exiting surface 312 and reflective surface 314.Location division 320 is connected at least one side of plate body 310.
Above-mentioned light guide plate 300 can more comprise: a leaded light pattern 350 is arranged on the exiting surface 312 or the reflective surface 314 of plate body 310, to promote light guide effect.
Can compare Fig. 3 and Fig. 5, the light guide plate 300 of Fig. 3 only is provided with location division 320 in a side of plate body 310, and the light guide plate 302 of Fig. 5 is provided with location division 320 in three sides of plate body 310.Yet 320 set positions, location division can be adjusted according to the demand of bearing accuracy, are not limited at this.In other words, as long as location division 320 is arranged on a side of plate body 310 at least, can reaches for plate body 310 and position, in order to the cutting processing procedure of follow-up cutting tool 340.
Can compare Fig. 3 and Fig. 6, the location division 320 of the light guide plate 300 of Fig. 3 only has a perforation 322, and each location division 320 of the light guide plate 304 of Fig. 6 can have two perforation 322, and in the same side of plate body 310 two location divisions 320 can be set.About 322 quantity that on a location division 320, are provided with of boring a hole, and the set quantity in location division 320 etc., can adjust according to the demand of bearing accuracy, do not limited at this.
Can compare Fig. 3 and Fig. 7, the shape of the perforation 322 of the location division 320 of the light guide plate 300 of Fig. 3 is circular, and the shape of the perforation 322 of the location division 320 of the light guide plate 306 of Fig. 7 is oval.About 322 the shape of boring a hole can be to be fit to shape arbitrarily, as circular, oval, square, rectangle, star and combination thereof, is not limited at this.
Can compare Fig. 3 and Fig. 8, the light guide plate 300 of Fig. 3 only is provided with location division 320 in a side of plate body 310, and the light guide plate 302 of Fig. 8 is: location division 320 is connected the corner location of plate body 310.Yet the position is set can adjusts according to the demand of bearing accuracy of location division 320 do not limited at this.
Utilize above-mentioned light guide plate 300～308 with location division 320, cooperate orientation tool 330 light guide plate 300～308 can be carried out good location, in order to the cutting action (secondary processing) of follow-up cutting tool 340, to obtain the high array of optical elements OPA (being illustrated in Fig. 8) of precision for light guide plate 300～308.
In addition, above-mentioned location division 320 utilizes impact style earlier and makes.Can utilize the mould that designs to carry out punching press, and cut out the light guide plate 300～308 and the location division 320 of required form simultaneously for a complete optics plate.Moreover, to handle incidence surface 316 and when forming array of optical elements OPA, can utilize location division 320 that light guide plate 300～308 is positioned on the positioning machine table (not illustrating) for the incidence surface of light guide plate 300～308 follow-up.Thus, when utilizing cutting tool 340 to handle, more can accurately produce array of optical elements OPA for the incidence surface 316 of each plate body 310.
[light guide plate]
Fig. 9 is the synoptic diagram of a kind of light guide plate of the utility model embodiment.Please refer to Fig. 9, light guide plate 400 comprises: plate body 410 and array of optical elements OPA.Plate body 410 have exiting surface 412, with the reflective surface 414 of exiting surface 412 subtends and at least one incidence surface 416 of contacting exiting surface 412 and reflective surface 414.Array of optical elements OPA is arranged at the incidence surface 416 of plate body 410, and wherein, array of optical elements 410 is arranged at the incidence surface 416 of plate body 410 with flushing, and the incidence surface 416 of plate body 410 does not have burr.
In addition, light guide plate 400 also can comprise leaded light pattern 450, is arranged at the exiting surface 412 or the reflective surface 414 of plate body 410.
Relatively the light guide plate 100 of the light guide plate 400 of Fig. 9 of the utility model embodiment and known Fig. 1 as can be known, even light guide plate 400 thickness of the utility model embodiment as thin as a wafer, still can form the array of optical elements OPA that flushes, and not have the burr generation at incidence surface 416.Hence one can see that, and light guide plate 400 has the good optical effect, and the light that the light emitting diode (not illustrating) that is arranged on the side of light guide plate 400 can be provided imports in the light guide plate 400 equably.
Certainly, the incidence surface 416 that Fig. 9 only illustrates a side forms array of optical elements OPA, yet, can be as required optionally also form array of optical elements OPA in the incidence surface 416 of other three sides.
In addition, after the cutting action of cutting tool 340, can further excise the location division 320 of light guide plate 300～308, to obtain light guide plate 400 as shown in Figure 9; The location requirement that perhaps, also location division 320 can be used for follow-up assembling processing procedure.
In sum, light guide plate of the present utility model and preparation method thereof, have the following advantages at least with light guide plate:
Can on the incidence surface of thickness light guide plate as thin as a wafer, make array of optical elements.The cutting tool that utilization has a microstructure cuts the incidence surface of light guide plate, and can form array of optical elements that flushes and the burr that do not disturb light incident at incidence surface.Utilization is connected in the location division of plate body to locate light guide plate well, then can cut out the high array of optical elements of optical precision degree.The light guide plate of made can make light incident incidence surface equably, and then uniform surface light source is provided.
Though the utility model discloses as above with embodiment; right its is not in order to limit the utility model; has common knowledge under any in the technical field; in the spirit and scope that do not break away from the utility model; when can doing a little change and retouching, so the protection domain of the utility model is when looking being as the criterion that the accompanying Claim scope defined.
Claims (5)
1. a light guide plate is characterized in that comprising: a plate body; Described plate body have an exiting surface, with a reflective surface of this exiting surface subtend and at least one incidence surface that contacts this exiting surface and this reflective surface; And
At least one location division; Described location division is connected at least one side of this plate body.
2. light guide plate according to claim 1 is characterized in that: this location division comprises at least one perforation.
3. light guide plate according to claim 2 is characterized in that: the shape of this perforation comprises circle, square, rectangle, ellipse and combination thereof.
4. light guide plate according to claim 1 is characterized in that: more comprise: a leaded light pattern; Described leaded light pattern setting is in this exiting surface or this reflective surface of this plate body.
5. light guide plate according to claim 2 is characterized in that: this location division is connected the corner location of this plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200314922U CN201936026U (en) | 2011-01-28 | 2011-01-28 | Light-guiding plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200314922U CN201936026U (en) | 2011-01-28 | 2011-01-28 | Light-guiding plate |
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| Publication Number | Publication Date |
|---|---|
| CN201936026U true CN201936026U (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200314922U Expired - Fee Related CN201936026U (en) | 2011-01-28 | 2011-01-28 | Light-guiding plate |
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| CN (1) | CN201936026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043189A (en) * | 2011-01-28 | 2011-05-04 | 苏州茂立光电科技有限公司 | Light guide plate and manufacturing method thereof |
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2011
- 2011-01-28 CN CN2011200314922U patent/CN201936026U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043189A (en) * | 2011-01-28 | 2011-05-04 | 苏州茂立光电科技有限公司 | Light guide plate and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20170128 |