CN105403949A - Thin-type light guiding plate and preparation method thereof - Google Patents
Thin-type light guiding plate and preparation method thereof Download PDFInfo
- Publication number
- CN105403949A CN105403949A CN201510966089.1A CN201510966089A CN105403949A CN 105403949 A CN105403949 A CN 105403949A CN 201510966089 A CN201510966089 A CN 201510966089A CN 105403949 A CN105403949 A CN 105403949A
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- Prior art keywords
- boss
- guide plate
- guiding plate
- light guide
- preparation
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention provides a thin-type light guiding plate and a preparation method thereof. The thin-type light guiding plate comprises a substrate. A transparent adhesive layer is laid on the top face of the substrate. Total reflection microstructure net points are printed on the base face of the substrate in a hot pressing manner. A boss is formed on an incidence end of the transparent adhesive layer. The height of the top face of the boss is adaptive to the upper end light path of an incidence light source. The invention also provides a preparation method of the thin-type light guiding plate. According to the invention, the light guiding plate is finally formed by Aggreko plates via extrusion, cutting, UV glue imprinting, drying, cutting into small plates, and net point imprinting. In the UV glue imprinting, UV glue is smeared on an imprinting die, the imprinting die is pressed on the plate material in a pressing manner and then the UV glue is imprinted on the plate material. According to the invention, the boss is formed on the incidence end of the transparent adhesive layer on the top face of the light guiding plate body, and the height of the top face of the boss is adaptive to the upper end light path of an incidence light source, so while it is realized that the light guiding plate is thinned, the thickness of the light guiding plate matches that of an LED lamp, and requirements on lightness is achieved.
Description
Technical field
The present invention relates to LCD backlight source technical field, be specifically related to a kind of slimming light guide plate and preparation method thereof.
Background technology
For side entrance back module, comprise the assemblies such as light source, light guide plate, all kinds of bloomings.Light guide plate is wherein the most key part, and its Main Function is the scattering direction guiding light, the pointolite of incident sideways is converted into the uniform area light source of front outgoing, improves brightness and the homogeneity of backlight module.Along with the development trend of flat panel display equipment slimming, for small size, (3 ~ 10 ") backlight is also more and more thinner, and key component light guide plate and LED also will toward slimming development.Light guide plate also requirement can reach 0.2 ~ 0.6mm, and the thickness that LED generally uses for 0.4mm and more than, be not enough to the demand for development meeting slimming.
Summary of the invention
The invention provides a kind of slimming light guide plate, be applied on small size backlight module, realize the slimming of backlight.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of slimming light guide plate, comprise substrate, the end face of this substrate is equipped with substratum transparent, and the bottom surface hot padding of this substrate has the microstructure site for broken ring light path total reflection, the incidence end of described substratum transparent is formed with boss, the apical side height of this boss and the upper end light path of incident light source suitable.
Preferably, described microstructure site is the circular ring impressed along described substrate bottom surface.
Preferably, described boss is right-angled trapezium, and the right angle waist of this right-angled trapezium is vertical with the light path of incident light source.
Preferably, described substrate adopts acrylic material or polycarbonate material.
The preparation method of the present invention's also a kind of slimming light guide plate, comprises the steps:
1) raw material produces sheet material by extrusion equipment;
2) sheet material carries out cutting after polishing through polishing running roller, becomes the large plate of requirement up to specification;
3) through impressing mould, the substratum transparent with right-angled trapezium boss is impressed into the coated face of large plate;
4) illumination curing is carried out to the glue-line on large plate, then carry out precision die cutting, become the platelet meeting dimensions and require;
5) transfer printing of microstructure site is carried out through the uncoated face of hot padding equipment to platelet;
6) use the two sides of laminating machine to platelet to cover diaphragm, slimming light guide plate completes.
Further, in step 3), described substratum transparent has to one end the impressing mould being inverted right-angled trapezium notch through coating apparatus to carry out the formation of UV glue application.
Preferably, in step 5), described hot padding equipment comprises the photoconduction wheel of upper end and the impression wheel of lower end, and this impression wheel is provided with multiple projection going out microstructure site for transfer printing.
Further, between step 5) and step 6), also include electrostatic step, use the coated face of ion fan to platelet to remove electrostatic.
From above technical scheme, the substratum transparent incidence end of light guide plate end face is designed to boss by the present invention, the apical side height of this boss and the upper end light path of incident light source suitable, while realizing slimming, with LED thickness matching, reach the requirement of brightness.
Accompanying drawing explanation
Fig. 1 is the structural representation of slimming light guide plate of the present invention, and shows the position of LED light source;
Fig. 2 is the production line process flow diagram of preparation method of the present invention;
Fig. 3 is the schematic diagram of substratum transparent preparation process in the present invention;
Fig. 4 is the schematic diagram of microstructure imprint step in the present invention.
In figure: 10, substrate, 20, substratum transparent, 21, boss, 30, microstructure site, 40, LED light source, 51, coating apparatus, 52, impressing mould, 61, photoconduction wheel, 62, impression wheel.
Embodiment
Below in conjunction with accompanying drawing, a kind of preferred implementation of the present invention is described in detail.
As shown in Figure 1, described slimming light guide plate comprises substrate 10, and the present embodiment adopts acrylic board, thickness is 0.2 ~ 0.6mm, and the end face of described substrate is equipped with substratum transparent 20, is preferably UV glue-line, its thickness is 0.003 ~ 0.02mm, and hardness, up to 2H, plays good wear-resisting anti-scratch function.The bottom surface hot pressing of described substrate 10 is printed on microstructure site 30, and this microstructure site is preferably a kind of circular ring impressed along described substrate bottom surface, for the total reflection of broken ring light path, plays the effect of scattering netted dot.
Small size (3 ~ 10 ") backlight slimming design; light guide plate will reach 0.2 ~ 0.6mm; need coupling LED light source 40(thickness be 0.4mm and more than) use; boss 21 can be formed with in the incidence end of substratum transparent 20, the apical side height of this boss and the upper end light path of LED light source 40 suitable.Described boss 21 is designed to right-angled trapezium, the right angle waist of this right-angled trapezium is vertical with the light path of LED light source 40, and incident light source can import in light guide plate by design completely like this, and can meet slimming demand, be applied on small size backlight module, realize the slimming of backlight.
The present invention also provides a kind of preparation method of slimming light guide plate, use that Ya Like sheet material (PMMA) extrudes, cuts, UV glue laminated print, dry, be cut into platelet, site impression, final molding, wherein UV glue laminated print is that UV glue application is on impressing mould, impressing mould impresses with sheet material again, and UV glue is transferred on sheet material.
2 couples of preparation methods of the present invention specifically describe as follows by reference to the accompanying drawings:
001:PMMA particle produces acryl plates by extrusion equipment;
002: sheet material carries out cutting after polishing through polishing running roller, becomes the large plate of requirement up to specification;
003: the coated face through impressing mould, the substratum transparent with right-angled trapezium boss being impressed into large plate, this substratum transparent has the impressing mould 52 being inverted right-angled trapezium notch to carry out the formation of UV glue application through coating apparatus 51 pairs of one end, with reference to Fig. 3, also need impressing mould 52 to overturn before the imprint;
004: illumination curing is carried out to the glue-line on large plate, generally by UV light irradiation, carry out dry solidification, make its hardness to more than 2H, there is anti scuffing function, then carry out precision die cutting, become the platelet meeting dimensions and require;
005: the transfer printing carrying out microstructure site through the uncoated face of hot padding equipment to platelet, wherein hot padding equipment comprises the photoconduction wheel 61 of upper end and the impression wheel 62 of lower end, this impression wheel is provided with multiple projection going out microstructure site for transfer printing, with reference to Fig. 4;
006: use the coated face of ion fan to platelet to remove electrostatic;
007: then use the two sides of laminating machine to platelet to cover diaphragm;
008: slimming light guide plate finished product completes.
The above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (8)
1. a slimming light guide plate, it is characterized in that, comprise substrate, the end face of this substrate is equipped with substratum transparent, the bottom surface hot padding of this substrate has the microstructure site for broken ring light path total reflection, the incidence end of described substratum transparent is formed with boss, the apical side height of this boss and the upper end light path of incident light source suitable.
2. slimming light guide plate according to claim 1, is characterized in that, described microstructure site is the circular ring impressed along described substrate bottom surface.
3. slimming light guide plate according to claim 1, is characterized in that, described boss is right-angled trapezium, and the right angle waist of this right-angled trapezium is vertical with the light path of incident light source.
4. slimming light guide plate according to claim 1, is characterized in that, described substrate adopts acrylic material or polycarbonate material.
5. a preparation method for slimming light guide plate, is characterized in that, comprises the steps:
1) raw material produces sheet material by extrusion equipment;
2) sheet material carries out cutting after polishing through polishing running roller, becomes the large plate of requirement up to specification;
3) through impressing mould, the substratum transparent with right-angled trapezium boss is impressed into the coated face of large plate;
4) illumination curing is carried out to the glue-line on large plate, then carry out precision die cutting, become the platelet meeting dimensions and require;
5) transfer printing of microstructure site is carried out through the uncoated face of hot padding equipment to platelet;
6) use the two sides of laminating machine to platelet to cover diaphragm, slimming light guide plate completes.
6. preparation method according to claim 5, is characterized in that, in step 3), described substratum transparent has to one end the impressing mould being inverted right-angled trapezium notch through coating apparatus to carry out the formation of UV glue application.
7. preparation method according to claim 5, is characterized in that, in step 5), described hot padding equipment comprises the photoconduction wheel of upper end and the impression wheel of lower end, and this impression wheel is provided with multiple projection going out microstructure site for transfer printing.
8. preparation method according to claim 5, is characterized in that, also includes electrostatic step between step 5) and step 6), uses the coated face of ion fan to platelet to remove electrostatic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510966089.1A CN105403949B (en) | 2015-12-22 | 2015-12-22 | A kind of slimming light guide plate and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510966089.1A CN105403949B (en) | 2015-12-22 | 2015-12-22 | A kind of slimming light guide plate and preparation method thereof |
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| Publication Number | Publication Date |
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| CN105403949A true CN105403949A (en) | 2016-03-16 |
| CN105403949B CN105403949B (en) | 2018-10-19 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873155A (en) * | 2018-08-09 | 2018-11-23 | 嘉兴市创杰电子科技有限公司 | A kind of production method and its structure of light guide plate |
| CN109051051A (en) * | 2018-07-24 | 2018-12-21 | 昆山锦林光电材料有限公司 | A kind of conveying device applied to light guide plate |
| CN109383015A (en) * | 2018-10-08 | 2019-02-26 | 重庆亿光源光电科技有限公司 | A kind of novel lower compression roller for site hot press |
| CN110014560A (en) * | 2019-04-08 | 2019-07-16 | 深圳市和成光电有限责任公司 | A kind of plastic cement leaded light board machining process of 1.1mm or less thickness |
| CN113232077A (en) * | 2021-04-20 | 2021-08-10 | 秦巧巧 | Manufacturing and processing technology of high-transmittance light guide plate |
| CN113928036A (en) * | 2021-09-28 | 2022-01-14 | 东莞市银泰丰光学科技有限公司 | Front-side high-temperature UV (ultraviolet) imprinting process |
| CN114442218A (en) * | 2022-03-01 | 2022-05-06 | 苏州清越光电科技股份有限公司 | Method for manufacturing mesh points of light guide plate |
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| EP2187247A2 (en) * | 2008-11-17 | 2010-05-19 | Samsung Electronics Co., Ltd. | Backlight assembly using flexible light guiding film and liquid crystal display module using the same |
| CN202561652U (en) * | 2012-04-13 | 2012-11-28 | 京东方科技集团股份有限公司 | Light guide plate, edge-lit backlight module and liquid crystal display device |
| CN203600605U (en) * | 2013-10-22 | 2014-05-21 | 苏州天禄光电科技有限公司 | Heat transfer printing processing device for net points of light guide plate |
| JP2014164995A (en) * | 2013-02-25 | 2014-09-08 | Minebea Co Ltd | Planar luminaire |
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| CN205263342U (en) * | 2015-12-22 | 2016-05-25 | 翰博高新材料(合肥)股份有限公司 | Slimming light guide plate |
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| EP2187247A2 (en) * | 2008-11-17 | 2010-05-19 | Samsung Electronics Co., Ltd. | Backlight assembly using flexible light guiding film and liquid crystal display module using the same |
| CN202561652U (en) * | 2012-04-13 | 2012-11-28 | 京东方科技集团股份有限公司 | Light guide plate, edge-lit backlight module and liquid crystal display device |
| JP2014164995A (en) * | 2013-02-25 | 2014-09-08 | Minebea Co Ltd | Planar luminaire |
| CN203600605U (en) * | 2013-10-22 | 2014-05-21 | 苏州天禄光电科技有限公司 | Heat transfer printing processing device for net points of light guide plate |
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| CN205263342U (en) * | 2015-12-22 | 2016-05-25 | 翰博高新材料(合肥)股份有限公司 | Slimming light guide plate |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109051051A (en) * | 2018-07-24 | 2018-12-21 | 昆山锦林光电材料有限公司 | A kind of conveying device applied to light guide plate |
| CN109051051B (en) * | 2018-07-24 | 2023-09-19 | 昆山锦林光电材料有限公司 | Conveying device applied to light guide plate |
| CN108873155A (en) * | 2018-08-09 | 2018-11-23 | 嘉兴市创杰电子科技有限公司 | A kind of production method and its structure of light guide plate |
| CN109383015A (en) * | 2018-10-08 | 2019-02-26 | 重庆亿光源光电科技有限公司 | A kind of novel lower compression roller for site hot press |
| CN110014560A (en) * | 2019-04-08 | 2019-07-16 | 深圳市和成光电有限责任公司 | A kind of plastic cement leaded light board machining process of 1.1mm or less thickness |
| CN113232077A (en) * | 2021-04-20 | 2021-08-10 | 秦巧巧 | Manufacturing and processing technology of high-transmittance light guide plate |
| CN113928036A (en) * | 2021-09-28 | 2022-01-14 | 东莞市银泰丰光学科技有限公司 | Front-side high-temperature UV (ultraviolet) imprinting process |
| CN114442218A (en) * | 2022-03-01 | 2022-05-06 | 苏州清越光电科技股份有限公司 | Method for manufacturing mesh points of light guide plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105403949B (en) | 2018-10-19 |
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Denomination of invention: Thin-type light guiding plate and preparation method thereof Effective date of registration: 20191029 Granted publication date: 20181019 Pledgee: Anhui Changfeng rural commercial bank Limited by Share Ltd new Bengbu Road Branch Pledgor: HAMBO HIGH-TECHNOLOGY NEW MATERIALS (HEFEI) CO., LTD. Registration number: Y2019340000154 |
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Date of cancellation: 20200916 Granted publication date: 20181019 Pledgee: Anhui Changfeng rural commercial bank Limited by Share Ltd. new Bengbu Road Branch Pledgor: HANBO HIGH-NEW MATERIAL (HEFEI) Co.,Ltd. Registration number: Y2019340000154 |
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