CN102841400A - Manufacturing method for light guide plate - Google Patents
Manufacturing method for light guide plate Download PDFInfo
- Publication number
- CN102841400A CN102841400A CN 201110167485 CN201110167485A CN102841400A CN 102841400 A CN102841400 A CN 102841400A CN 201110167485 CN201110167485 CN 201110167485 CN 201110167485 A CN201110167485 A CN 201110167485A CN 102841400 A CN102841400 A CN 102841400A
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- China
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- lgp
- light guide
- guide plate
- nanoscale
- material layer
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Abstract
The invention provides a manufacturing method for a light guide plate. The manufacturing method comprises the following steps: carrying out injection molding on the light guide plate to obtain a light guide plate and a light guide plate stub bar connected with the light guide plate; shearing the light guide plate stud bar to obtain a light guide plate with a shear edge; providing a hot remolding device, wherein the hot remolding device is provided with a nanoscale mold release material layer and the hot melt temperature of the nanoscale mold release material layer is greater than that of a light guide plate material; heating the hot remolding device to enable the temperature of the nanoscale mold release layer to be greater than the hot melt temperature of the light guide plate material; and enabling the shear edge of the light guide plate to be contacted with the nanoscale mold release material layer of the hot remolding device for flattening the edge of the light guide plate. According to the manufacturing method of the light guide plate, the edge of the light guide plate is flattened by the hot remolding of the shear edge of the light guide plate.
Description
Technical field
The present invention relates to LGP, relate in particular to the method for making of LGP.
Background technology
LGP in the module backlight behind ejection formation, need be sheared because of stub bar is arranged, and shearing needs one sidewall to polish processing procedure the uneven surface of sheared edge to be finished to minute surface, so just can not to influence optical appearance again after accomplishing.There is following problem in the method: 1. owing to after shearing, use polishing cutting processing procedure, polishing dust loss is everywhere arranged easily in the process, cause the LGP surface contamination easily even cause scratch; 2. the polishing cutter is prone to abrasion, needs to change cost is raised up, and needs regular monitoring cutter abrasion situation in order to avoid cause the end face quality of finish to descend; 3. if clip to becoming the bad burr that cause excessive, is very easy in the polishing processing procedure, cause the edge to collapse the angle problem, cause fraction defective rising and polishing cutter also fragile.
Summary of the invention
In view of this, be necessary to provide a kind of method for manufacturing light guide plate.
A kind of method for manufacturing light guide plate, it comprises the ejection formation LGP, the LGP stub bar that obtains LGP and be connected with LGP; Shear the LGP stub bar, obtain to have the LGP of sheared edge; One thermogravimetric molding apparatus is provided, and this thermogravimetric molding apparatus has a nanoscale separated type material layer, and this nanoscale separated type material layer hot melting temperature is higher than LGP material hot melting temperature; Heat this thermogravimetric molding apparatus, the temperature that makes nanoscale separated type material layer is on LGP material hot melting temperature; The sheared edge contact thermal of LGP is reinvented the nanoscale separated type material layer of device so that the LGP edge is smooth.
With respect to prior art, method for manufacturing light guide plate thermogravimetric provided by the invention is moulded the LGP sheared edge makes it smooth, so avoids the use of LGP edge polishing method, reduces contamination of products and loss.
Description of drawings
Fig. 1 is the synoptic diagram of the LGP stub bar that is connected with the LGP stub bar of LGP.
Fig. 2 is the synoptic diagram with LGP of sheared edge.
Fig. 3 is the synoptic diagram on a surface at the stainless steel-based end of polishing tool grinding and polishing.
Fig. 4 is the synoptic diagram that nanoscale separated type material layer is sputtered at the stainless steel-based end.
Fig. 5 is the synoptic diagram that will lock the stainless steel-based end that is coated with nanoscale separated type material layer a heating holding jig.
Fig. 6 is the synoptic diagram that the sheared edge of LGP is reinvented contact thermal on the nanoscale separated type material layer of device.
Fig. 7 is the sheared edge of LGP becomes a smooth LGP side after moulding through thermogravimetric a synoptic diagram.
The main element symbol description
| The |
12 |
| LGP | 20 |
| Sheared |
21 |
| The |
30 |
| |
40 |
| The stainless steel-based |
32 |
| Nanoscale separated |
34 |
| The |
36 |
| The |
22 |
| |
51 |
| |
52 |
Following embodiment will combine above-mentioned accompanying drawing to further specify the present invention.
Embodiment
See also Fig. 1 to Fig. 7, the embodiment of the invention provides method for manufacturing light guide plate may further comprise the steps.
Step 1: with mould ejection formation LGP, eject product then, the LGP stub bar 12 (referring to Fig. 1) that obtains LGP 20 and be connected with LGP 20.This LGP material can be used polymethylmethacrylate (PMMA), and it usually hot melt is taking place more than 220 ℃ during temperature.This LGP can also be selected other suitable material for use, only needs its hot melting temperature to be lower than following thermogravimetric molding apparatus 30 hot melting temperatures.This LGP stub bar 12 comprises and waters the road junction that it is ejected behind ejection formation together with LGP 20.
Step 2: shear LGP stub bar 12 with cutting implement, obtain to have the LGP 20 (referring to Fig. 2) of sheared edge 21.These sheared edge 21 flatness also do not reach the requirement of product product.
Step 3: a thermogravimetric molding apparatus 30 is provided.
This thermogravimetric molding apparatus 30 can be made by following method.
At first, be provided a stainless steel-based end 32.In the present embodiment, the STAVAX stainless steel is used at this stainless steel-based end 32, and it contains chromium (Cr) 13.6% at least, silicon (Si) 0.9%, and manganese (Mn) 0.5% and carbon (C) 0.38%, it is generally used for using in mould, the instrument.The hot melting temperature at this stainless steel-based end 32 is higher than LGP material, and for example STAVAX stainless steel hot melting temperatur can be more than 900 ℃.
Secondly, with a polishing tool 40 grinding and polishings one surface (referring to Fig. 3) at this stainless steel-based end 32.
Further, be coated with a nanoscale separated type material layer 34 polished surface (referring to Fig. 4) in this stainless steel-based end 32.Nanoscale separated type material quality is careful, can with the polished surface combine well at the stainless steel-based end 32, and nanoscale separated type material tool is coated with model's point, as the usefulness of moulding can with the layered product easy separation.This is coated with methods such as can adopting vapor deposition, sputter.These nanoscale separated type material layer 34 hot melting temperatures are higher than LGP material hot melting temperature.In the present embodiment, this nanoscale separated type material adopts and type bores film (DLC), type bores film under a higher temperature, and for example 220 ℃ still have harder and smooth surface, and itself hot melting temperature can reach more than 3000 ℃.
Next, referring to Fig. 5, a heating holding jig 36 is locked at this stainless steel-based end 32 that is coated with nanoscale separated type material layer 34.This heating holding jig 36 can fixing and is heated at the stainless steel-based end 32 that this is coated with nanoscale separated type material layer 34.
Step 4: heat this thermogravimetric molding apparatus 30, the temperature that makes nanoscale separated type material layer 34 is on LGP material hot melting temperature.For thermogravimetric is moulded this LGP with sheared edge 21 20, the temperature of these 36 these stainless steel-based ends 32 of heating of heating holding jig and nanoscale separated type material layer 34 is on LGP 20 material hot melting temperatures.
Step 5:, sheared edge 21 contact thermal of LGP 20 are reinvented the nanoscale separated type material layer 34 of device 30 referring to Fig. 6.This LGP 20 can expose this sheared edge 21 slightly by a top board 51 and a bottom deck 52 common fixings, and this thermogravimetric molding apparatus 30 moves contact and this sheared edge 21 of hot melt to this LGP 20 then.
Referring to Fig. 7, through after thermogravimetric moulds, the sheared edge 21 of above-mentioned LGP 20 becomes a smooth LGP side 22.Because nanoscale separated type material layer 34 has harder and level and smooth surface, the side 22 that this LGP 20 also can transcription obtains having the minute surface grade.So, avoid the use of LGP edge polishing method, reduce contamination of products and loss.
It is understandable that those skilled in the art also can do other and change in spirit of the present invention, all should be included in the present invention's scope required for protection in.
Claims (8)
1. method for manufacturing light guide plate, it comprises:
The ejection formation LGP, the LGP stub bar that obtains LGP and be connected with LGP;
Shear the LGP stub bar, obtain to have the LGP of sheared edge;
One thermogravimetric molding apparatus is provided, and this thermogravimetric molding apparatus has a nanoscale separated type material layer, and this nanoscale separated type material layer hot melting temperature is higher than LGP material hot melting temperature;
Heat this thermogravimetric molding apparatus, the temperature that makes nanoscale separated type material layer is on LGP material hot melting temperature; And
The sheared edge contact thermal of LGP is reinvented the nanoscale separated type material layer of device so that the LGP edge is smooth.
2. method for manufacturing light guide plate as claimed in claim 1; It is characterized in that: this thermogravimetric molding apparatus also comprises a stainless steel-based end; This hot melting temperature of stainless steel-based end is higher than LGP material hot melting temperature, and this nanoscale separated type material layer is sputtered at a surface at this stainless steel-based end.
3. method for manufacturing light guide plate as claimed in claim 2 is characterized in that: this thermogravimetric molding apparatus further comprises a heating holding jig, is used for fixing and this stainless steel-based end of heating and nanoscale separated type material layer.
4. the method for manufacturing light guide plate of stating like claim 2 is characterized in that: before this nanoscale separated type material layer is sputtered at this stainless steel-based end, further comprise the step on the surface that this stainless steel-based end of grinding and polishing contacts with nanoscale separated type material layer.
5. the method for manufacturing light guide plate of stating like claim 1 is characterized in that: chromium 13.6% is contained at this stainless steel-based end, silicon 0.9%, manganese 0.5% and carbon 0.38%.
6. method for manufacturing light guide plate as claimed in claim 1 is characterized in that: this nanoscale separated type material layer is a type brill film.
7. the method for manufacturing light guide plate of stating like claim 6 is characterized in that: this LGP material is a polymethylmethacrylate.
8. method for manufacturing light guide plate as claimed in claim 1 is characterized in that: this LGP stub bar comprises and waters the road junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110167485 CN102841400A (en) | 2011-06-21 | 2011-06-21 | Manufacturing method for light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110167485 CN102841400A (en) | 2011-06-21 | 2011-06-21 | Manufacturing method for light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102841400A true CN102841400A (en) | 2012-12-26 |
Family
ID=47368930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110167485 Pending CN102841400A (en) | 2011-06-21 | 2011-06-21 | Manufacturing method for light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102841400A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112917952A (en) * | 2020-12-29 | 2021-06-08 | 江苏铁锚玻璃股份有限公司 | Method for repairing surface of organic transparent material plate |
-
2011
- 2011-06-21 CN CN 201110167485 patent/CN102841400A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112917952A (en) * | 2020-12-29 | 2021-06-08 | 江苏铁锚玻璃股份有限公司 | Method for repairing surface of organic transparent material plate |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121226 |