CN107652602A - A kind of light guide plate preparation method as LCD backlight source - Google Patents
A kind of light guide plate preparation method as LCD backlight source Download PDFInfo
- Publication number
- CN107652602A CN107652602A CN201710417400.6A CN201710417400A CN107652602A CN 107652602 A CN107652602 A CN 107652602A CN 201710417400 A CN201710417400 A CN 201710417400A CN 107652602 A CN107652602 A CN 107652602A
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- light
- backlight source
- lcd backlight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a kind of light guide plate as LCD backlight source and preparation method thereof, including PMMA, PC, light diffusing agent, light stabilizer, heat stabilizer, silicone master batch, tekite sand, the parts by weight of each component to be：PMMA35 60, PC25 40, light diffusing agent 18, light stabilizer 0.3 3, heat stabilizer 0.1 1, silicone master batch 25, tekite sand 10 15.It is injected to after above-mentioned material is melted in mould, light guide plate is made.The light guide plate can show higher hardness at normal temperatures, effectively can prevent light guide plate surface from scratching.
Description
Technical field
The present invention relates to a kind of light guide plate as LCD backlight source and preparation method thereof
Background technology
Existing light guide plate is acrylic/PC plate material using optical grade, and then using has high reflectivity and not extinction
Hitech materials, stamp light guiding points with UV screen printing technologies in the acryl plates bottom surface of optical grade.It is sub- using optical grade
Gram force sheet material draws the stop from the light that lamp issues on optical grade acryl plates surface, when light is mapped to each light guiding points
When, reflected light can spread toward all angles, then destroy conditioned reflex and projected by light guide plate front.Pass through various densitys, size
The light guiding points to differ, light guide plate uniformly light-emitting can be made.The purposes of reflector plate is reflected back in light guide plate in the light for exposing bottom surface,
For improving the service efficiency of light；In the case of homalographic luminosity, luminous efficiency is high, low in energy consumption.One side micro structure array
Light guide plate typically uses the manufacture craft of extrusion molding.According to this principle, people are able to traditional spot light being converted into face
Light source.
People's various smart machines used in everyday, its display overwhelming majority is liquid crystal display, but liquid crystal is in itself simultaneously
It can not light, then therefore the light guide plate as LCD backlight source produces.But because the hardness of light guide plate is very low, Mohs
Hardness is 2, is had unavoidably when transporting, cutting or installing and using and collides with, rubs, plus various unpredictable in production and application
Property, it is easy to scratched, or even it is serious when can cause scrapping for monoblock light guide plate.Although it is thought that some easy repairings
Method, but requirement higher and higher today of the color shown in people to display, in general repairing obviously can not escape from people
Fastidious eye, moreover some scars are difficult to remove.
The content of the invention
In view of the above-mentioned drawbacks of the prior art, the technical problems to be solved by the invention, which are to provide one kind, is used as liquid crystal
The light guide plate of display backlight, while the light transmittance of light guide plate is kept, its hardness has aobvious relative to existing light guide plate
Ground is write to improve.
In order to solve the above problems, preparation formula of the present invention to light guide plate has done further improvement：By original formula
Optimize and add silicone master batch and two kinds of materials of tekite sand.The scheme that is made of concrete scheme is：By individual composition
Weight fraction is PMMA35-60, PC25-40, light diffusing agent 1-8, light stabilizer 0.3-3, heat stabilizer 0.1-1 are mixed in container
In, it is heated to melting and is injected in mould, treats its cooling.
Optimize as to a kind of of the present invention, wherein being 2-5 silicone master batch also including weight fraction
Optimize as to a kind of of the present invention, wherein being 10-15 tekite sands also including weight fraction.
Optimize as to a kind of of the present invention, wherein being 2-5 silicone master batch and 10-15 vitreous silicas also including weight fraction
Sand.
Optimize as to a kind of of the present invention, the weight fraction of silicone master batch is 5, and the weight fraction of tekite sand is
14。
Specific preparation process is to mix the material of above-mentioned weight fraction to be placed in container, is heated to 220-570 DEG C, with
Molten resin is injected in mould afterwards, treats its cooling, that is, is made and tells light guide plate.
Optimize as one kind to preparation process, wherein the heating-up temperature to material is 460 DEG C.
In a word, silicone master batch and tekite sand are mixed and heated melting with the other materials of light guide plate is made, then will
It is expelled in mould, treats its cooling, and light guide plate is made.In the present invention, the purpose of silicone master batch and tekite sand is to carry
The case hardness of high light guide plate, while silicone master batch also has the function as lubricant.Using light guide plate produced by the present invention
Case hardness is significantly improved, and it is most of in preparation process, in storage transport and in installing and using can to resist it
Collide with, scratch.
Embodiment
Hereinafter, some embodiments of the present invention, but not all embodiment be will be described in.Really, can be with
The present invention is embodied in many different forms, but should not be construed that the present invention be limited to embodiment listed herein.
Embodiment 1：
By weight fraction be PMMA28kg, PC15kg, light diffusing agent 2kg, light stabilizer 0.6kg, heat stabilizer 0.3kg,
Added after silicone master batch 1kg mixing in melting utensil, 460 DEG C are heated the material to, then with 190mm/s speed injection to mould
Its cooling is treated in tool.Obtain measuring hardness with Moh's hardness scale after light guide plate, it is found that its hardness is less than 3.
Embodiment 2：
By weight fraction be PMMA28kg, PC15kg, light diffusing agent 2kg, light stabilizer 0.6kg, heat stabilizer 0.3kg,
Added after silicone master batch 2.5kg mixing in melting utensil, heat the material to 460 DEG C, then with 190mm/s speed injection extremely
Its cooling is treated in mould.Obtain measuring hardness with Moh's hardness scale after light guide plate, find on slightly larger than 3,3 grades hardometers of its hardness
There is shadow scratch.
Embodiment 3：
By weight fraction be PMMA28kg, PC15kg, light diffusing agent 2kg, light stabilizer 0.6kg, heat stabilizer 0.3kg,
Added after tekite sand 5kg mixing in melting utensil, heat the material to 460 DEG C, then with 190mm/s speed injection extremely
Its cooling is treated in mould.Obtain measuring hardness with Moh's hardness scale after light guide plate, it is found that its hardness is less than 4,4 grades of hardometers and makes to lead
There is cut on tabula rasa.
Embodiment 4：
By weight fraction be PMMA28kg, PC15kg, light diffusing agent 2kg, light stabilizer 0.6kg, heat stabilizer 0.3kg,
Added after tekite sand 7.5kg mixing in melting utensil, 460 DEG C are heated the material to, then with 190mm/s speed injection
Its cooling is treated into mould.Obtain measuring hardness with Moh's hardness scale after light guide plate, find its hardness be more than 4,4 grades of hardness in respect of
Cut, there is deeper cut on 4 grades of hardometers.
Embodiment 5：
By weight fraction be PMMA28kg, PC15kg, light diffusing agent 2kg, light stabilizer 0.6kg, heat stabilizer 0.3kg,
Added after silicone master batch 1kg, tekite sand 5kg mixing in melting utensil, 460 DEG C are heated the material to, then with 190mm/s
Speed injection its cooling is treated into mould.Obtain measuring hardness with Moh's hardness scale after light guide plate, it is found that its hardness is more than 4,4
There is cut on level hardometer.
Embodiment 6：
By weight fraction be PMMA28kg, PC15kg, light diffusing agent 2kg, light stabilizer 0.6kg, heat stabilizer 0.3kg,
Silicone master batch 1kg, tekite sand 7.5kg mixing after add melting utensil in, heat the material to 460 DEG C, then with
190mm/s speed injection treats its cooling into mould.Obtain measuring hardness with Moh's hardness scale after light guide plate, find its hardness
Less than 5,5 grades hardometers make light guide plate have cut.
Embodiment 7：
By weight fraction be PMMA28kg, PC15kg, light diffusing agent 2kg, light stabilizer 0.6kg, heat stabilizer 0.3kg,
Silicone master batch 2.5kg, tekite sand 5kg mixing after add melting utensil in, heat the material to 460 DEG C, then with
190mm/s speed injection treats its cooling into mould.Obtain measuring hardness with Moh's hardness scale after light guide plate, find its hardness
Less than 5,5 grades hardometers make light guide plate have cut.
Embodiment 8：
By weight fraction be PMMA28kg, PC15kg, light diffusing agent 2kg, light stabilizer 0.6kg, heat stabilizer 0.3kg,
Silicone master batch 2.5kg, tekite sand 7.5kg mixing after add melting utensil in, heat the material to 460 DEG C, then with
190mm/s speed injection treats its cooling into mould.Obtain measuring hardness with Moh's hardness scale after light guide plate, find its hardness
Shadow scratch is had on slightly larger than 5,5 grades hardometers.
Embodiment 9：
By weight fraction be PMMA28kg, PC15kg, light diffusing agent 2kg, light stabilizer 0.6kg, heat stabilizer 0.3kg,
Silicone master batch 2.5kg, tekite sand 7kg mixing after add melting utensil in, heat the material to 460 DEG C, then with
190mm/s speed injection treats its cooling into mould.Obtain measuring hardness with Moh's hardness scale after light guide plate, find its hardness
Slightly larger than 5,5 grades hardometers have shadow scratch.
Embodiment 10：
By weight fraction be PMMA28kg, PC15kg, light diffusing agent 2kg, light stabilizer 0.6kg, heat stabilizer 0.3kg,
Silicone master batch 2.5kg, tekite sand 7kg mixing after add melting utensil in, heat the material to 220 DEG C, then with
190mm/s speed injection treats its cooling into mould.Obtain measuring hardness with Moh's hardness scale after light guide plate, find its hardness
More than 4, less than 5,4 grades hardometers have shadow scratch, and 5 grades of hardometers make have obvious cut on light guide plate.
Embodiment 11：
By weight fraction be PMMA28kg, PC15kg, light diffusing agent 2kg, light stabilizer 0.6kg, heat stabilizer 0.3kg,
Silicone master batch 2.5kg, tekite sand 7kg mixing after add melting utensil in, heat the material to 570 DEG C, then with
190mm/s speed injection treats its cooling into mould.Obtain measuring hardness with Moh's hardness scale after light guide plate, find its hardness
Being slightly less than 5,5 grades of hardometers can make light guide plate have shadow scratch.
In summary, the present invention has a clear superiority in terms of hardness relative to prior art, and anti-scratch effect is more preferable.Simultaneously
Light transmittance is also within the scope of acceptable.
Embodiment described above technological thought only to illustrate the invention and feature, its describe it is more specific and in detail,
Its object is to enable one of ordinary skill in the art to understand present disclosure and implement according to this, the present invention is not limited to
Embodiment content.Therefore the scope of the claims of the present invention can not be only limited with this, it is noted that for the common of this area
For technical staff, without departing from the inventive concept of the premise, various modifications and improvements can be made is that is, all according to this hair
Any modification that bright embodiment is made, equivalent variations, in the range of still falling within technical scheme.
Claims (6)
1. a kind of light guide plate as LCD backlight source, it is PMMA35-60, PC25-40, light diffusing agent 1- by parts by weight
8th, it is molded after light stabilizer 0.3-3, heat stabilizer 0.1-1 Hybrid Heatings, it is characterised in that：There is weight in the light guide plate
Fraction is 2-5 silicone master batch.
A kind of 2. light guide plate as LCD backlight source according to claim 1, it is characterised in that：In the light guide plate
Also parts by weight are 10-15 tekite sand.
A kind of 3. light guide plate as LCD backlight source according to claim 2, it is characterised in that：In the light guide plate
Also parts by weight are 2-5 silicone master batch.
A kind of 4. light guide plate as LCD backlight source according to claim 3, it is characterised in that；Silicone master batch
Parts by weight are 5, and the parts by weight of tekite sand are 14.
5. a kind of light guide plate preparation method as LCD backlight source according to claim 1-4 is as follows：By described in
The material mixing of weight fraction is placed in container, is heated to 220-570 DEG C, is then injected in mould molten resin, treat that its is cold
But, that is, the light guide plate is made.
6. a kind of light guide plate preparation method as LCD backlight source according to claim 5, it is characterized in that：To material
The heating-up temperature of material is 460 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710417400.6A CN107652602A (en) | 2017-06-06 | 2017-06-06 | A kind of light guide plate preparation method as LCD backlight source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710417400.6A CN107652602A (en) | 2017-06-06 | 2017-06-06 | A kind of light guide plate preparation method as LCD backlight source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107652602A true CN107652602A (en) | 2018-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710417400.6A Pending CN107652602A (en) | 2017-06-06 | 2017-06-06 | A kind of light guide plate preparation method as LCD backlight source |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109082053A (en) * | 2018-07-04 | 2018-12-25 | 苏州亿光源光电科技有限公司 | A kind of high transparency light guide plate and preparation method thereof |
| CN110109223A (en) * | 2019-05-14 | 2019-08-09 | 深圳技术大学 | Laser wireless energy transmission system based on light guide plate |
| CN110109224A (en) * | 2019-05-14 | 2019-08-09 | 深圳技术大学 | Laser array wireless energy transmission system based on light guide plate |
-
2017
- 2017-06-06 CN CN201710417400.6A patent/CN107652602A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109082053A (en) * | 2018-07-04 | 2018-12-25 | 苏州亿光源光电科技有限公司 | A kind of high transparency light guide plate and preparation method thereof |
| CN110109223A (en) * | 2019-05-14 | 2019-08-09 | 深圳技术大学 | Laser wireless energy transmission system based on light guide plate |
| CN110109224A (en) * | 2019-05-14 | 2019-08-09 | 深圳技术大学 | Laser array wireless energy transmission system based on light guide plate |
| CN110109223B (en) * | 2019-05-14 | 2024-04-26 | 深圳技术大学 | Laser wireless energy transmission system based on light guide plate |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180202 |