CN102755977A - Heavy industry technique and heavy industry equipment of light guide plate - Google Patents

Heavy industry technique and heavy industry equipment of light guide plate Download PDF

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Publication number
CN102755977A
CN102755977A CN2012102367302A CN201210236730A CN102755977A CN 102755977 A CN102755977 A CN 102755977A CN 2012102367302 A CN2012102367302 A CN 2012102367302A CN 201210236730 A CN201210236730 A CN 201210236730A CN 102755977 A CN102755977 A CN 102755977A
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heavy industry
lgp
cleaning agent
cleaning
roller
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CN2012102367302A
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CN102755977B (en
Inventor
朋朝明
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Skyworth Group Intelligent Equipment Co Ltd
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Guangzhou Skyworth Flat Display Technology Co Ltd
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Abstract

The invention relates to the technical field of liquid crystal display and provides a heavy industry technique and heavy industry equipment of a light guide plate, wherein the heavy industry technique comprises the following steps: coating a first cleaning agent on the light guide plate to be subjected to heavy industry; and sequentially conveying the light guide plate coated with the first cleaning agent in a hair brush washing device and a roller cleaning device, and then drying the light guide plate. According to the invention, the heavy industry equipment is used for replacing the current mode of manually wiping the heavy industry equipment or directly discarding the unfavorable light guide plate, which not only avoids the problems of light guide plate damage and dirty entrance caused by manually wiping in the traditional heavy industry, but also avoids the direct contact of human and the volatile cleaning agent to greatly improve the working environment, improve the product yield and reduce the production cost.

Description

The heavy industry technology of LGP and heavy industry equipment
Technical field
The present invention relates to technical field of liquid crystal display, more particularly, relate to a kind of heavy industry technology and heavy industry equipment of LGP.
Background technology
At present, the main employing of the LGP of medium-and-large-sized size (Light guide plate, LGP) printed moulding.Its utilization have high reflectivity and not the high-tech material (being commonly called as printing ink) of extinction stamp the leaded light site and moulding in the acrylic/PC sheet material bottom surface of optical grade with screen printing technology.Its operation principle is: utilize optical grade acrylic sheet material to draw the light that sends from light source; And in the stop of optical grade acryl sheet material surface; When light is mapped to each leaded light site; Destroy light in the inner total reflection of acrylic sheet material, reverberation can penetrate by LGP is positive toward all angles diffusion.Through various densitys, leaded light site not of uniform size are set, can make the LGP uniformly light-emitting.
But, in the serigraphy processing procedure, LGP finished product site occurs through regular meeting and lack, connect bad phenomenon such as point, white group, shadow.And the LGP size is big more, the bad ratio in site occurs, probability is big more.The site bad phenomenon makes the LGP can not uniformly light-emitting, if be applied to then bad picture can occur in the liquid crystal module.For the bad LGP in site, industry does not also have good treatment technology at present, can only adopt manual wipping or scrap processing.Acrylic sheet material surface can't reach the cleanliness factor before the printing behind the manual wipping, is prone to that other are bad, like shadow, damages etc.Particularly for large scale TV LGP, because dot area is big, 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 organic matter of volatility at present, and penetrating odor is arranged, and is very big to human harm.And because optics utmost point acrylic sheet material price is higher, about 3.5-4$/Kg directly scraps processing as if heavy industry not and can cause very big loss again.
Summary of the invention
Technical problem to be solved by this invention is to overcome the defective of prior art, provides a kind of heavy industry efficient high, measured technology and the heavy industry equipment that LGP is carried out heavy industry of heavy industry matter.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of heavy industry technology of LGP is provided, comprises following processing step:
S1: will treat to apply on the LGP of heavy industry first cleaning agent;
S2: the said LGP employing transmitting device that will be coated with first cleaning agent is sent into the hairbrush cleaning device successively, the roller cleaning device cleans, and is dry then.
The present invention also provides a kind of heavy industry equipment of LGP, comprises main body, runs through the conveyer in the main body, hairbrush cleaning device, roller cleaning device, secondary hairbrush cleaning device, secondary roller cleaning device and the drying device that the said conveyer direction of advance in edge sets gradually.
Among the present invention; Utilize heavy industry equipment replacement existing manual wiping heavy industry or directly scrap bad LGP; Not only avoided in traditional heavy industry because of the LGP damage that manual wipping caused, dirty entering, and avoided the people directly to contact, improved working environment greatly with the volatility cleaning agent; Improve the production yields, reduced production cost.
Description of drawings
Fig. 1 is a heavy industry process chart provided by the invention;
Fig. 2 is the mass percent concentration list of the cleaning agent selected for use in the clean stage provided by the invention;
Fig. 3 is the framework sketch map of heavy industry equipment provided by the invention.
The specific 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.
With reference to Fig. 1, be the flow chart of the heavy industry technology of the LGP that the invention provides.Wherein,
S1: will treat to apply on the LGP of heavy industry first cleaning agent.Particularly; In this step; Be that the bad LGP that will treat heavy industry is immersed in first cleaning agent, this first cleaning agent is mixed by host YC-504 BONDING Cleaner, secondary agent YS-901Thinner, and the mass percent concentration scope that host accounts for first cleaning agent is 70%-90%.Wherein, host YC-504 BONDING Cleane is the printing ink that is used to clean LGP that Japan rapids forever (NAGASE) company produces, and it is mixed by 20% ester class and 80% ketone; Secondary agent YS-901 also is that Japan rapids forever (NAGASE) company produces, the concentration that is used to regulate solvent, its be by 90% 3,5,5-trimethyl-2-cyclohexene-1-ketone and 4-methyl-3-amylene-2-ketone of 10% mix.
Certainly, also can first cleaning agent be sprayed on the LGP through spray gun in this step, can be the postorder matting good basis is provided as long as guarantee to be coated with on the LGP first cleaning agent, all within protection domain of the present invention.
To place on the conveyer of heavy industry equipment 110 through the LGP of S1 step.In the present embodiment, conveyer 110 is a delivery roller, certainly, also can delivery roller be replaced with conveyer belt.Through the transmission of delivery roller, deliver to the hairbrush cleaning device.Like the S21 step: the hairbrush of hairbrush cleaning device at first carries out the hairbrush level to LGP and vertically cleans, and vertical cleaning here is meant that the level vertical with the delivery roller direction of advance is vertical.And hairbrush dips in before cleaning gets second cleaning agent, and said second cleaning agent is mixed by host YC-504BONDING Cleaner, secondary agent YS-901Thinner, and the mass percent concentration scope that host accounts for second cleaning agent is 60%-70%.Concrete operations: hairbrush is placed in the container ware of splendid attire second cleaning agent, utilize rotation, hairbrush dips in has expired second cleaning agent; Utilize the site on the abundant wetting LGP of second cleaning agent; And through frictional force cleaning site, the use amount of so effective minimizing second cleaning agent reduces cost.And need to prove that the hairbrush material can not any chemical reaction take place with second cleaning agent among the present invention, and the hairbrush material hardness can not be higher than the hardness (2H) of LGP, otherwise will damage LGP.Among the present invention, preferred hairbrush material is senior nylon.
S22: the LGP through after the vertical cleaning of said brush level moves on, and the horizontal cross that gets into the hairbrush cleaning device is cleaned section.Here, described horizontal cross is cleaned and is meant the direction identical with the delivery roller direction of advance.Same, the hairbrush that horizontal cross is cleaned also dips in has in advance expired the second above-mentioned cleaning agent, utilizes the abundant wetting site of second cleaning agent, and cleans the site through frictional force.In the present embodiment, delivery roller speed is slower, and LGP slowly moves under it drives, so horizontal cross and vertical cleaning can not influence the transmission of LGP on delivery roller.In the present embodiment, the setting of hairbrush and cleaning operation can be operated through manipulator or control system, do not specifically describe here.
S23: the LGP after the above-mentioned S22 step moves under delivery roller drives, and gets into the roller cleaning device.Like the S23 step: the cleaning roller of roller cleaning device at first carries out the roller level to LGP and vertically cleans; And the cleaning roller dips in before cleaning gets the 3rd cleaning agent; The cleaning agent that said the 3rd cleaning agent is mixed by host YC-504BONDING Cleaner, secondary agent YS-901Thinner, and the mass percent concentration scope that host accounts for the 3rd cleaning agent is 40%-50%.Concrete operations: will clean in the container ware that roller places splendid attire the 3rd cleaning agent, and utilize rotation, roller dips in has expired the 3rd cleaning agent; Utilize the abundant wetting light guide plate mesh point of the 3rd cleaning agent; And through frictional force cleaning site, the use amount of so effective minimizing cleaning agent reduces cost.In the present embodiment; Cleaning roller comprises the stainless steel roller bearing in being located at and overlaps the roller that employing PVA (polyvinyl alcohol polyvinyl alcohol) on it processes; The PVA suction can be expanded, and therefore need make suitable PVA caliber and make roller according to the coefficient of expansion of PVA.
S24: the LGP through after the vertical cleaning of above-mentioned rollers level moves on; The horizontal cross that gets into the roller cleaning device is cleaned section; Same; The cleaning roller that horizontal cross is cleaned dips in has in advance expired the 4th cleaning agent, utilizes the abundant wetting site of the 4th cleaning agent, and cleans the site through frictional force.To dip in the 4th cleaning agent of getting also be to be mixed by host YC-504 BONDING Cleaner, secondary agent YS-901Thinner to the roller that clean of horizontal cross here, and the mass percent concentration scope that host accounts for the 4th cleaning agent also is 30%-40%.In the present embodiment; The cleaning roller that cleans section is set to bilayer, places main and the below of going up of LGP respectively, and between the upper and lower cleaning roller spring and pressure gauge is set; Thereby clean the frictional force between roller and the LGP through the control of the demonstration on the pressure gauge, thereby regulate cleaning performance.
Also comprise behind the above-mentioned S24 vertical cleaning of the secondary hairbrush level of LGP and secondary roller level are vertically cleaned.Like S25: LGP drives down entering secondary hairbrush level at delivery roller and vertically cleans.At this moment, hairbrush dips in before cleaning gets the 5th cleaning agent, and the 5th cleaning agent is mixed by host YC-504 BONDING Cleaner, secondary agent YS-901Thinner, and the mass percent concentration scope that host accounts for the 5th cleaning agent is 20%-30%.
S26: LGP gets into secondary roller level and vertically cleans under delivery roller drives.At this moment, roller dips in before cleaning gets the 6th cleaning agent, the cleaning agent that the 6th cleaning agent is mixed by host YC-504 BONDING Cleaner, secondary agent YS-901Thinner, and the mass percent concentration scope that host accounts for the 6th cleaning agent is less than 5%.Through the frictional force effect, guarantee this time to clean the surperficial site cleaning of back LGP fully, thoroughly.
S27: get into the hot-air seasoning device through the LGP behind the step S26 and handled by hot-air seasoning.
S28: get into the cold wind drying unit through the LGP behind the step S27 and handled by the cold wind oven dry.
S3: whether the LGP after check is cleaned is qualified, if qualified, places the non-defective unit district; Otherwise, then repeat above-mentioned heavy industry step heavy industry once more.
With reference to Fig. 2, be the mass percent concentration list of the various cleaning agents that the clean stage selects for use in the present embodiment.By finding out in the chart; For guarantee cleaning performance and guarantee simultaneously to clean after LGP do not stay spot; Manage the stage detergent concentration throughout and reduce successively, and the cleaning agent of stage employing in the end is that pure secondary agent is that pure diluent dissolves the spot that possibly remain on the LGP basically.Can guarantee that the cleaning agent noresidue is on LGP through hot blast, cold wind after handling at last.And adopt different concentration per the processing stage, and not only obtain best cleaning performance, and save cleaning agent, can not cause waste.Experiment showed, that the LGP that adopts after this heavy industry PROCESS FOR TREATMENT is on outward appearance and optical property and the basic indifference of LGP that did not print.
With reference to Fig. 3, be the structural framing figure of the heavy industry equipment that uses in the above-mentioned heavy industry technology of the present invention.Said heavy industry equipment comprises main body 100, run through conveyer 110 in the main body 100, along hairbrush cleaning device 120, roller cleaning device 130, secondary hairbrush cleaning device 140, secondary roller cleaning device 150, hot-air seasoning portion 160, cold wind oven dry portion 170 that conveyer 110 directions of advance set gradually and be located at the extractor fan 180 on the main body 100.Among the present invention; Utilize the above-mentioned heavy industry technology of heavy industry equipment combination to replace existing manual wiping heavy industry or directly scrap bad LGP; Not only avoided in traditional heavy industry because of the LGP damage that manual wipping caused, dirty entering, and avoided the people directly to contact, improved working environment greatly with the volatility cleaning agent; Improve the production yields, reduced production cost.
As the scheme that substitutes, among the present invention,, also can nozzle be set in the top of LGP when the site of LGP faces up when transmitting, evenly spray cleaning agent through nozzle and make its complete wetting, carry out cleaning operation through hairbrush again.
As the scheme that substitutes, among the present invention, the roller of roller cleaning device 130 also can rely on the rotation container of self to dip in full cleaning agent.Particularly, the interior stainless steel roller bearing of roller is filled cleaning agent,, cleaning agent is penetrated on the outer PVA material roller through the aperture on the roller bearing wall.Like this, the PVA roller just dips in has expired cleaning agent, and the benefit of doing like this is, can reduce the solvent use amount, reduces cost.It should be noted that equally the PVA suction can expand, need make suitable PVA caliber according to the coefficient of expansion of PVA.In the present embodiment, be set to bilayer owing to clean roller, the light guide plate mesh point face can face upward or downward placement.The placement if light guide plate mesh point faces up, then the PVA roller of below need not dip in cleaning agent; If the light guide plate mesh point placed face down, then the PVA roller of top need not dip in solvent.
More than be merely preferred embodiment of the present invention,, all any modifications of within spirit of the present invention and principle, being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention not in order to restriction the present invention.

Claims (10)

1. the heavy industry technology of a LGP is characterized in that: comprise following processing step:
S1: will treat to apply on the LGP of heavy industry first cleaning agent;
S2: the said LGP employing transmitting device that will be coated with first cleaning agent is sent into the hairbrush cleaning device successively, the roller cleaning device cleans, and is dry then.
2. the heavy industry technology of LGP as claimed in claim 1 is characterized in that: said hairbrush cleaning device carries out the hairbrush level successively to said LGP and vertically cleans and the cleaning of hairbrush horizontal cross; Hairbrush all dipped in and gets second cleaning agent during the vertical cleaning of hairbrush level was cleaned with the hairbrush horizontal cross; Said second cleaning agent is mixed by host YC-504 BONDING Cleaner, secondary agent YS-901Thinner, and the mass percent concentration scope that host accounts for second cleaning agent is 60%-70%.
3. the heavy industry technology of LGP as claimed in claim 2 is characterized in that: said roller cleaning device carries out successively the roller level to said LGP and vertically cleans and the cleaning of roller horizontal cross; Roller dipped in and gets the 3rd cleaning agent during the roller level was vertically cleaned, and said the 3rd cleaning agent is mixed by host YC-504 BONDING Cleaner, secondary agent YS-901Thinner, and the mass percent concentration scope that host accounts for the 3rd cleaning agent is 40%-50%; Roller dipped in and gets the 4th cleaning agent during the roller horizontal cross was cleaned, and said the 4th cleaning agent is mixed by host YC-504 BONDING Cleaner, secondary agent YS-901Thinner, and the mass percent concentration scope that host accounts for the 4th cleaning agent is 30%-40%.
4. the heavy industry technology of LGP as claimed in claim 3 is characterized in that: said heavy industry technology also is included in the above-mentioned rollers horizontal cross and cleans that the secondary hairbrush level of said LGP being carried out the back is vertically cleaned and secondary roller level is vertically cleaned.
5. the heavy industry technology of LGP as claimed in claim 4; It is characterized in that: hairbrush dipped in and gets the 5th cleaning agent during said secondary hairbrush level was vertically cleaned; Said the 5th cleaning agent is mixed by host YC-504 BONDING Cleaner, secondary agent YS-901Thinner, and the mass percent concentration scope that host accounts for the 5th cleaning agent is 20%-30%; Roller dipped in and gets the 6th cleaning agent during said secondary roller level was vertically cleaned; Said the 6th cleaning agent is mixed by host YC-504 BONDING Cleaner, secondary agent YS-901Thinner, and the mass percent concentration scope that host accounts for the 6th cleaning agent is less than 5%.
6. like the heavy industry technology of each described LGP in the claim 1 to 5; It is characterized in that: said first cleaning agent is mixed by host YC-504 BONDING Cleaner, secondary agent YS-901Thinner, and the mass percent concentration scope that host accounts for first cleaning agent is 70%-90%.
7. the heavy industry technology of LGP as claimed in claim 1 is characterized in that: said dried is handled and is comprised hot-air seasoning and the cold wind oven dry of carrying out successively.
8. the heavy industry technology of LGP as claimed in claim 1 is characterized in that: said heavy industry technology also comprises the step that LGP behind the check heavy industry is whether qualified, like defective repetition S1, S2 step.
9. the heavy industry equipment of a LGP is characterized in that: comprise main body, run through the conveyer in the main body, hairbrush cleaning device, roller cleaning device, secondary hairbrush cleaning device, secondary roller cleaning device and the drying device that the said conveyer direction of advance in edge sets gradually.
10. the heavy industry technology of LGP as claimed in claim 9 is characterized in that: also have extractor fan on the said main body.
CN201210236730.2A 2012-07-09 2012-07-09 Heavy industry technique of light guide plate Active CN102755977B (en)

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CN102755977B CN102755977B (en) 2014-07-09

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0419089A1 (en) * 1989-09-05 1991-03-27 NAGASE & COMPANY, LTD. Cleaning compositions and applications thereof
JPH09234432A (en) * 1995-12-28 1997-09-09 Sharp Corp Method for cleaning liquid crystal display panel and cleaner therefor
JP2005313169A (en) * 2004-04-28 2005-11-10 Dms:Kk Substrate processing system and substrate processing method
KR100753129B1 (en) * 2007-04-04 2007-08-30 (주)유엠메카닉스 Dry type cleaning apparatus for light guide plate
CN201020465Y (en) * 2007-04-25 2008-02-13 北京京东方光电科技有限公司 Rolling brush cleaning unit for cleaning device
CN101183285A (en) * 2007-12-25 2008-05-21 友达光电股份有限公司 Touch control type display apparatus and heavy industry method
CN201454908U (en) * 2009-08-05 2010-05-12 成都柯达星印刷器材有限公司 Plate-based surface treatment device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0419089A1 (en) * 1989-09-05 1991-03-27 NAGASE & COMPANY, LTD. Cleaning compositions and applications thereof
JPH09234432A (en) * 1995-12-28 1997-09-09 Sharp Corp Method for cleaning liquid crystal display panel and cleaner therefor
JP2005313169A (en) * 2004-04-28 2005-11-10 Dms:Kk Substrate processing system and substrate processing method
KR100753129B1 (en) * 2007-04-04 2007-08-30 (주)유엠메카닉스 Dry type cleaning apparatus for light guide plate
CN201020465Y (en) * 2007-04-25 2008-02-13 北京京东方光电科技有限公司 Rolling brush cleaning unit for cleaning device
CN101183285A (en) * 2007-12-25 2008-05-21 友达光电股份有限公司 Touch control type display apparatus and heavy industry method
CN201454908U (en) * 2009-08-05 2010-05-12 成都柯达星印刷器材有限公司 Plate-based surface treatment device

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Effective date of registration: 20210714

Address after: Room 821, No. 333, jiufo Jianshe Road, Zhongxin Guangzhou Knowledge City, Huangpu District, Guangzhou, Guangdong 510000

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.