CN101968556A - Light guide plate and repair method for incomplete dots thereof - Google Patents
Light guide plate and repair method for incomplete dots thereof Download PDFInfo
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- CN101968556A CN101968556A CN 201010282190 CN201010282190A CN101968556A CN 101968556 A CN101968556 A CN 101968556A CN 201010282190 CN201010282190 CN 201010282190 CN 201010282190 A CN201010282190 A CN 201010282190A CN 101968556 A CN101968556 A CN 101968556A
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- light guide
- guide plate
- dot area
- repairing
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000008439 repair process Effects 0.000 title claims abstract description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- 238000007639 printing Methods 0.000 claims description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 230000008034 disappearance Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- -1 acryl Chemical group 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
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- Laser Beam Processing (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention is suitable for the field of light guide plate production, and provides a light guide plate and a repair method for incomplete dots thereof. The repair method comprises the following steps of: acquiring the information of an incomplete dot area on the light guide plate; determining repair diameters of the incomplete dot area; adjusting the output power and the pulse frequency of a laser according to the repair diameters; and repairing the incomplete dot area by utilizing a laser beam output by the laser. The method repairs the incomplete dots on the light guide plate by adopting laser, and has a good repair effect, high efficiency and safety.
Description
Technical field
The invention belongs to the light guide plate production field, relate in particular to the method for repairing and mending and the light guide plate of the incomplete site of a kind of light guide plate.
Background technology
At present, large scale LGP (Light guide plate, light guide plate) molding mode mainly is the printing moulding, utilize the acrylic/PC sheet material of optical grade, with having the high reflectivity and the high-tech material (being commonly called as printing ink) of extinction not, stamp the leaded light point with screen printing technology then in acryl sheet material bottom surface.The light that utilizes optical grade acrylic sheet material to draw to send from lamp is in the stop on optical grade acryl sheet material surface, when light is mapped to each leaded light point, destroy the total reflection of light in acrylic sheet material inside, reflected light can penetrate by light guide plate is positive toward all angles diffusion.By various densitys, leaded light point not of uniform size, can make the light guide plate uniformly light-emitting.
But, in the serigraphy processing procedure, through regular meeting the phenomenon of LGP finished product site disappearance appears, and cause the light guide plate can not uniformly light-emitting, will picture to occur in the liquid crystal module bad if be assembled in.The LGP of industry solution at present site disappearance is bad to have two kinds of methods according to the printing process difference:
The first, for the heat curing processing procedure,, uses specific dissolution with solvents light guide ink guaranteeing that acrylic sheet material does not take place under the prerequisite of chemical reaction, after the LGP oven dry again secondary print moulding, i.e. heavy industry.This kind method weak point is can't reach cleanliness factor before the printing through the acrylic sheet material surface after the dissolution with solvents, is prone to behind the heavy industry that other are bad, as shadow, and bright spot etc.Particularly for large scale TV LGP, dot area is big, and it is higher to occur bad probability behind the heavy industry, and promptly yield is very low behind the heavy industry.And this kind solvent all is the high organism of volatility, and penetrating odor is arranged, and is very harmful to human body.
The second, for the UV curing process, after LGP printing moulding, industry is not developed the light guide ink of specific solvent after can be dissolving cured as yet at present, in other words, for the incomplete badness LGP in site, can only scrap processing.
Summary of the invention
The purpose of the embodiment of the invention is to provide the method for repairing and mending of the incomplete site of a kind of light guide plate, and after being intended to solve existing light guide plate and the site disappearance occurring, can only carry out heavy industry and handle, and the problem of heavy industry weak effect.
The embodiment of the invention is achieved in that the method for repairing and mending of the incomplete site of a kind of light guide plate, may further comprise the steps:
Obtain the information of incomplete dot area on the light guide plate;
Determine the repairing parameter of described incomplete dot area;
According to the output power and the pulsed frequency of described repairing parameter adjustment laser instrument, utilize the laser beam of described laser instrument output to repair described incomplete dot area.
Another purpose of the embodiment of the invention is to provide a kind of light guide plate, and described light guide plate is repaired by above-mentioned method for repairing and mending and formed.
The embodiment of the invention adopts site incomplete on the laser preparing light guide plate, and repair efficiency is good, efficient height, safety.
Description of drawings
Fig. 1 is the process flow diagram of the method for repairing and mending of the incomplete site of the light guide plate that provides of the embodiment of the invention;
Fig. 2 is the structural representation of the incomplete site of the light guide plate that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention adopts site incomplete on the laser preparing light guide plate, and repair efficiency is good, efficient height, safety.
The method for repairing and mending of the incomplete site of the light guide plate that the embodiment of the invention provides may further comprise the steps:
Obtain the information of incomplete dot area on the light guide plate;
Determine the repairing parameter of described incomplete dot area;
According to the output power and the pulsed frequency of described repairing parameter adjustment laser instrument, utilize the laser beam of described laser instrument output to repair described incomplete dot area.
The light guide plate that the embodiment of the invention provides is repaired by above-mentioned method for repairing and mending and is formed.
Below in conjunction with specific embodiment realization of the present invention is described in detail.
Fig. 1 shows the realization flow of the method for repairing and mending of the incomplete site of light guide plate that the embodiment of the invention provides, and details are as follows:
In step S101, obtain the information of incomplete dot area on the light guide plate;
The embodiment of the invention places the repairing platform with the light guide plate of site incompleteness, repair platform or CCD (Charge-coupled Device by moving, charge coupled cell) camera lens, make incomplete dot area on the light guide plate be positioned at the image pickup scope of CCD, obtain the image of incomplete dot area by CCD, this image is resolved position, shape and the size information that obtains incomplete dot area on the light guide plate.
In step S102, determine the repairing parameter of incomplete dot area;
The embodiment of the invention obtains the repairing parameter of incomplete dot area with the information of above-mentioned incomplete dot area and the former shelves information fit of light guide plate mesh point.
Usually, the former shelves information of light guide plate mesh point is the information that is printed in the light guide plate printing ink site.The repairing parameter of incomplete dot area mainly comprises shape (as circle, rhombus, regular hexagon), size (as the diameter of circular shaped lattice point) and the arrangement mode of site, and arrangement mode is that the density of site is the number and the spacing of site in the incomplete dot area.
Have identical site size and arrangement mode with a collection of light guide plate, thereby can be that the former shelves information of light guide plate mesh point is preset in patch system, avoid repeating to read, be beneficial to the raising repairing efficiency site information with a collection of light guide plate.
Certainly,, then can resolve the information of incomplete dot area periphery site 11, obtain the repairing parameter of incomplete dot area, as shown in Figure 2 if the incomplete site number of incomplete dot area 10 is no more than 5.The information of incomplete dot area periphery site is the mean value of size of incomplete dot area periphery site and the mean value of neighbour node spacing.
Three information to five sites of the preferred incomplete dot area periphery of the embodiment of the invention are resolved the information of these sites, obtain the repairing parameter of incomplete dot area.
In step S103,, utilize the laser beam of laser instrument output to repair incomplete dot area according to the output power and the pulsed frequency of repairing the parameter adjustment laser instrument.
The embodiment of the invention is with above-mentioned repairing parameter input carbon dioxide laser, carbon dioxide laser is repaired the output power and the pulsed frequency of parameter adjustment laser instrument according to this, and by the walking path of galvanometer change laser beam in incomplete dot area, form the site of required form and spacing by laser beam engraving light guide plate, thereby whole incomplete dot area is repaired.
Can destroy the total reflection of light in light guide plate equally through the site that laser preparing forms, reflected light can be toward all angles diffusion, and from the even outgoing of the exiting surface of light guide plate, repair efficiency is good, and efficient height, safety.
Those having ordinary skill in the art will appreciate that, all or part of step in realization the foregoing description method can instruct relevant hardware to finish by program, this program can be stored in the computer read/write memory medium, as ROM/RAM, disk, CD etc.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for repairing and mending of the incomplete site of light guide plate is characterized in that, said method comprising the steps of:
Obtain the information of incomplete dot area on the light guide plate;
Determine the repairing parameter of described incomplete dot area;
According to the output power and the pulsed frequency of described repairing parameter adjustment laser instrument, utilize the laser beam of described laser instrument output to repair described incomplete dot area.
2. the method for repairing and mending of the incomplete site of light guide plate as claimed in claim 1 is characterized in that the information of described incomplete dot area is position, shape and the size information of incomplete dot area.
3. the method for repairing and mending of the incomplete site of light guide plate as claimed in claim 2 is characterized in that the described step of obtaining the information of incomplete dot area on the light guide plate is specially:
The light guide plate of site incompleteness is placed the repairing platform, move the camera lens of described repairing platform or CCD, make incomplete dot area on the light guide plate be positioned at the image pickup scope of CCD;
Obtain the image of described incomplete dot area by CCD, obtain position, shape and the size information of incomplete dot area on the described light guide plate through resolving described image.
4. the method for repairing and mending of the incomplete site of light guide plate as claimed in claim 1 is characterized in that, the step of the repairing parameter of described definite described incomplete dot area is specially:
With the information of described incomplete dot area and the former shelves information fit of light guide plate mesh point, obtain the repairing parameter of described incomplete dot area.
5. the method for repairing and mending of the incomplete site of light guide plate as claimed in claim 1 is characterized in that, the step of the repairing parameter of described definite described incomplete dot area is specially:
When the number of the incomplete site of described incomplete dot area is no more than 5, then resolve the site information of described incomplete dot area periphery, obtain the repairing parameter of described incomplete dot area.
6. the method for repairing and mending of the incomplete site of light guide plate as claimed in claim 5 is characterized in that, the site information of the described incomplete dot area periphery of described parsing, and the step that obtains the repairing parameter of described incomplete dot area is specially:
Choose three information of described incomplete dot area periphery, the information of these sites is resolved, obtain the repairing parameter of described incomplete dot area to five sites;
The information of described incomplete dot area periphery site is the mean value of size of incomplete dot area periphery site and the mean value of neighbour node spacing.
7. the method for repairing and mending of the incomplete site of light guide plate as claimed in claim 4 is characterized in that, the former shelves information of described light guide plate mesh point is the information that is printed in described light guide plate printing ink site;
The repairing parameter of described incomplete dot area comprises shape, size and the arrangement mode of site, and described arrangement mode is the number and the spacing of site in the described incomplete dot area.
8. the method for repairing and mending of the incomplete site of light guide plate as claimed in claim 1, it is characterized in that, described output power and pulsed frequency according to described repairing parameter adjustment laser instrument, the step that the laser beam that utilizes described laser instrument to export is repaired described incomplete dot area is specially:
According to the output power and the pulsed frequency of described repairing parameter adjustment laser instrument, in described incomplete dot area, change the walking path of laser beam, the engraving light guide plate forms the site of required form and spacing.
9. the method for repairing and mending of the incomplete site of light guide plate as claimed in claim 8 is characterized in that described laser instrument is a carbon dioxide laser, and described carbon dioxide laser changes the walking path of laser beam by galvanometer.
10. a light guide plate is characterized in that, described light guide plate forms by repairing as the method for repairing and mending of each incomplete site of described light guide plate of claim 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010282190 CN101968556B (en) | 2010-09-15 | 2010-09-15 | Repair method for incomplete dots of light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010282190 CN101968556B (en) | 2010-09-15 | 2010-09-15 | Repair method for incomplete dots of light guide plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101968556A true CN101968556A (en) | 2011-02-09 |
| CN101968556B CN101968556B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010282190 Active CN101968556B (en) | 2010-09-15 | 2010-09-15 | Repair method for incomplete dots of light guide plate |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179631A (en) * | 2011-05-18 | 2011-09-14 | 苏州德龙激光有限公司 | Device and method for processing large-breadth light guide plate |
| CN102729667A (en) * | 2012-06-14 | 2012-10-17 | 歌尔声学股份有限公司 | Method and system for reworking bad light guide plate |
| CN106125191A (en) * | 2016-08-31 | 2016-11-16 | 黄山金马股份有限公司 | Auto meter liquid crystal display screen light guide plate |
| WO2018233283A1 (en) * | 2017-06-23 | 2018-12-27 | 胡佳培 | Machine for repair and maintenance of light guide |
| CN109188596A (en) * | 2018-10-26 | 2019-01-11 | 合肥京东方显示光源有限公司 | A kind of light guide plate mesh point complement point devices and methods therefor |
| CN110962484A (en) * | 2019-12-03 | 2020-04-07 | 维吉尔泰光电科技(苏州)有限公司 | Silk-screen printing process for processing acrylic light guide plate |
| CN111355831A (en) * | 2020-03-16 | 2020-06-30 | 德兴市恒海科技有限公司 | A kind of design method of glass back cover relief |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI511820B (en) * | 2013-12-02 | 2015-12-11 | Ardentec Corp | Parameter loading method of laser process machine |
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| JP2000347385A (en) * | 1999-06-03 | 2000-12-15 | Nec Corp | Laser repairing device and photomask correcting method |
| CN1651989A (en) * | 2004-02-04 | 2005-08-10 | 中强光电股份有限公司 | Manufacturing method and device of light guide plate |
| CN1904676A (en) * | 2005-07-26 | 2007-01-31 | 奥林巴斯株式会社 | Laser repairing device |
| JP2009164310A (en) * | 2007-12-28 | 2009-07-23 | Sharp Corp | Electronic parts repair equipment and electronic parts repairing method |
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Patent Citations (4)
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| JP2000347385A (en) * | 1999-06-03 | 2000-12-15 | Nec Corp | Laser repairing device and photomask correcting method |
| CN1651989A (en) * | 2004-02-04 | 2005-08-10 | 中强光电股份有限公司 | Manufacturing method and device of light guide plate |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179631A (en) * | 2011-05-18 | 2011-09-14 | 苏州德龙激光有限公司 | Device and method for processing large-breadth light guide plate |
| CN102179631B (en) * | 2011-05-18 | 2014-04-02 | 苏州德龙激光股份有限公司 | Device and method for processing large-breadth light guide plate |
| CN102729667A (en) * | 2012-06-14 | 2012-10-17 | 歌尔声学股份有限公司 | Method and system for reworking bad light guide plate |
| CN102729667B (en) * | 2012-06-14 | 2015-08-19 | 歌尔声学股份有限公司 | The method and system of the bad light guide plate of a kind of heavy industry |
| CN106125191A (en) * | 2016-08-31 | 2016-11-16 | 黄山金马股份有限公司 | Auto meter liquid crystal display screen light guide plate |
| WO2018233283A1 (en) * | 2017-06-23 | 2018-12-27 | 胡佳培 | Machine for repair and maintenance of light guide |
| CN109188596A (en) * | 2018-10-26 | 2019-01-11 | 合肥京东方显示光源有限公司 | A kind of light guide plate mesh point complement point devices and methods therefor |
| CN109188596B (en) * | 2018-10-26 | 2020-06-16 | 合肥京东方显示光源有限公司 | Light guide plate mesh point supplementing device and method thereof |
| CN110962484A (en) * | 2019-12-03 | 2020-04-07 | 维吉尔泰光电科技(苏州)有限公司 | Silk-screen printing process for processing acrylic light guide plate |
| CN111355831A (en) * | 2020-03-16 | 2020-06-30 | 德兴市恒海科技有限公司 | A kind of design method of glass back cover relief |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101968556B (en) | 2012-09-05 |
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Effective date of registration: 20210713 Address after: Room 821, No. 333, jiufo Jianshe Road, Zhongxin Guangzhou Knowledge City, Huangpu District, Guangzhou, Guangdong 510700 Patentee after: Skyworth Group Intelligent Technology Co., Ltd Address before: 510530 No.99, Kaida Road, Science City, Guangzhou Development Zone, Guangdong Province Patentee before: GUANGZHOU SKYWORTH FLAT DISPLAY TECHNOLOGY Co.,Ltd. |
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