CN101968556B - Repair method for incomplete dots of light guide plate - Google Patents
Repair method for incomplete dots of light guide plate Download PDFInfo
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- CN101968556B CN101968556B CN 201010282190 CN201010282190A CN101968556B CN 101968556 B CN101968556 B CN 101968556B CN 201010282190 CN201010282190 CN 201010282190 CN 201010282190 A CN201010282190 A CN 201010282190A CN 101968556 B CN101968556 B CN 101968556B
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Abstract
The invention is suitable for the field of light guide plate production, and provides a repair method for the incomplete dots of a light guide plate. 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; repairing the incomplete dot area by utilizing a laser beam output by the laser; and analyzing the dot information at the periphery of the incomplete dot area so as to obtain the repairing parameter of the incomplete dot area, when the number of incomplete dots in the incomplete dot area is no more than 5. 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 LGP production field, relate in particular to the method for repairing and mending of the incomplete site of a kind of LGP.
Background technology
At present; Large scale LGP (Light guide plate; LGP) 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 light in the inner total reflection of acrylic sheet material, reflected light can penetrate by LGP is positive toward all angles diffusion.Through various densitys, leaded light point not of uniform size, can make the LGP uniformly light-emitting.
But, in the serigraphy processing procedure, through regular meeting the phenomenon of LGP finished product site disappearance appears, and cause the LGP 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 the 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, like 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 big to human harm.
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 LGP, and after being intended to solve existing LGP 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 LGP, may further comprise the steps:
Obtain the information of incomplete dot area on the LGP;
Confirm the repairing parameter of said incomplete dot area;
According to the output power and the pulsed frequency of said repairing parameter adjustment laser instrument, utilize the laser beam of said laser instrument output to repair said incomplete dot area;
When the number of the incomplete site of said incomplete dot area is no more than 5, then resolve the site information of said incomplete dot area periphery, obtain the repairing parameter of said incomplete dot area;
The information of said incomplete dot area is position, shape and the size information of incomplete dot area, and the site information of said incomplete dot area periphery is mean value and the mean value of neighbour node spacing of the size of incomplete dot area periphery site.
The embodiment of the invention adopts site incomplete on the laser preparing LGP, and repair efficiency is good, and efficient is high, safety.
Description of drawings
Fig. 1 is the process flow diagram of the method for repairing and mending of the incomplete site of the LGP that provides of the embodiment of the invention;
Fig. 2 is the structural representation of the incomplete site of the LGP that provides of the embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.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 LGP, and repair efficiency is good, and efficient is high, safety.
The method for repairing and mending of the incomplete site of the LGP that the embodiment of the invention provides may further comprise the steps:
Obtain the information of incomplete dot area on the LGP;
Confirm the repairing parameter of said incomplete dot area;
According to the output power and the pulsed frequency of said repairing parameter adjustment laser instrument, utilize the laser beam of said laser instrument output to repair said incomplete dot area;
When the number of the incomplete site of said incomplete dot area is no more than 5, then resolve the site information of said incomplete dot area periphery, obtain the repairing parameter of said incomplete dot area;
The information of said incomplete dot area is position, shape and the size information of incomplete dot area, and the site information of said incomplete dot area periphery is mean value and the mean value of neighbour node spacing of the size of incomplete dot area periphery site.
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 LGP that the embodiment of the invention provides, and details are as follows:
In step S101, obtain the information of incomplete dot area on the LGP;
The LGP that the embodiment of the invention is incomplete with the site places the repairing platform; Repair platform or CCD (Charge-coupled Device through moving; Charge coupled cell) camera lens; Make incomplete dot area on the LGP be positioned at the image pickup scope of CCD,, this image is resolved position, shape and the size information that obtains incomplete dot area on the LGP by the image that CCD obtains incomplete dot area.
In step S102, confirm 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 (like circle, rhombus, regular hexagon), size (like 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 LGP, 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 LGP.
Certainly,, then can resolve the information of incomplete dot area periphery site 11, obtain the repairing parameter of incomplete dot area if the incomplete site number of incomplete dot area 10 is no more than 5, as shown in Figure 2.The site information of incomplete dot area periphery is mean value and the mean value of neighbour node spacing of the size of incomplete dot area periphery site.
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 through the walking path of galvanometer change laser beam in incomplete dot area; Form the site of required form and spacing by laser beam engraving LGP, thereby whole incomplete dot area is repaired.
Site through laser preparing forms can be destroyed the total reflection of light in LGP equally, and reflected light can be toward all angles diffusion, and from the even outgoing of the exiting surface of LGP, repair efficiency is good, and efficient is high, 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 accomplish through program; This program can be stored in the computer read/write memory medium, like ROM/RAM, disk, CD etc.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the method for repairing and mending of the incomplete site of LGP is characterized in that, said method comprising the steps of:
Obtain the information of incomplete dot area on the LGP;
Confirm the repairing parameter of said incomplete dot area;
According to the output power and the pulsed frequency of said repairing parameter adjustment laser instrument, utilize the laser beam of said laser instrument output to repair said incomplete dot area;
When the number of the incomplete site of said incomplete dot area is no more than 5, then resolve the site information of said incomplete dot area periphery, obtain the repairing parameter of said incomplete dot area;
The information of said incomplete dot area is position, shape and the size information of incomplete dot area, and the site information of said incomplete dot area periphery is mean value and the mean value of neighbour node spacing of the size of incomplete dot area periphery site.
2. the method for repairing and mending of the incomplete site of LGP as claimed in claim 1 is characterized in that the said step of obtaining the information of incomplete dot area on the LGP is specially:
The LGP that the site is incomplete places the repairing platform, moves the camera lens of said repairing platform or CCD, makes incomplete dot area on the LGP be positioned at the image pickup scope of CCD;
Obtain the image of said incomplete dot area by CCD, obtain position, shape and the size information of incomplete dot area on the said LGP through resolving said image.
3. the method for repairing and mending of the incomplete site of LGP as claimed in claim 1 is characterized in that, the site information of the said incomplete dot area periphery of said parsing, and the step that obtains the repairing parameter of said incomplete dot area is specially:
Choose three information of said incomplete dot area periphery, the information of these sites is resolved, obtain the repairing parameter of said incomplete dot area to five sites.
4. the method for repairing and mending of the incomplete site of LGP as claimed in claim 1; It is characterized in that; Said output power and pulsed frequency according to said repairing parameter adjustment laser instrument, the step that the laser beam that utilizes said laser instrument to export is repaired said incomplete dot area is specially:
According to the output power and the pulsed frequency of said repairing parameter adjustment laser instrument, in said incomplete dot area, change the walking path of laser beam, the engraving LGP forms the site of required form and spacing.
5. the method for repairing and mending of the incomplete site of LGP as claimed in claim 4 is characterized in that said laser instrument is a carbon dioxide laser, and said carbon dioxide laser changes the walking path of laser beam through galvanometer.
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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN101968556A CN101968556A (en) | 2011-02-09 |
| CN101968556B true CN101968556B (en) | 2012-09-05 |
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| 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 (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 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN107138326A (en) * | 2017-06-23 | 2017-09-08 | 东莞质研工业设计服务有限公司 | A kind of light guide plate repairs complete machine |
| 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 | Design method of glass rear cover embossment |
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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 | Method and device for mfg. light conducting 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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2010
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | Method and device for mfg. light conducting 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI511820B (en) * | 2013-12-02 | 2015-12-11 | Ardentec Corp | Parameter loading method of laser process machine |
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| CN101968556A (en) | 2011-02-09 |
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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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