CN106292019A - A kind of method that in the LCD of preventing production process, PI weighs wounded - Google Patents
A kind of method that in the LCD of preventing production process, PI weighs wounded Download PDFInfo
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- CN106292019A CN106292019A CN201510258882.6A CN201510258882A CN106292019A CN 106292019 A CN106292019 A CN 106292019A CN 201510258882 A CN201510258882 A CN 201510258882A CN 106292019 A CN106292019 A CN 106292019A
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- plastic ball
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Abstract
The invention discloses a kind of method that in the LCD of preventing production process, PI weighs wounded, it includes step: A, silk-screen, by half tone by fluid sealant and conducting resinl silk-screen silk-screen respectively on the glass being coated with PI；B, dusting, sprayed uniformly by plastic ball powder on the glass after step A silk-screen, plastic ball powder is used for isolating upper and lower two sheet glass；C, pressure box, by hot pressing, glass up and down after dusting in step B is pressed together, form LCD liquid crystal cell chamber, before described step A, plastic ball is attached to the printing surface of half tone the most thick and fast, and the diameter of described plastic ball is less than the thickness in described LCD liquid crystal cell chamber.It has the beneficial effects that: the method that in a kind of LCD of preventing production process that the present invention provides, PI weighs wounded, the pressure of PI layer is acted on by the node of unloading half tone, effectively stop the damage to PI layer of half tone node and scraper, improve the stability of LCD operation, reduce LCD fraction defective in silk-screen printing process, save manufacturing cost.
Description
[technical field]
The present invention relates to LCD production technology, the method weighed wounded particularly to PI in a kind of LCD of preventing production process.
[background technology]
In LCD production process, silk-screen is crucial one procedure, and the technique of silk-screen directly affects the product quality of LCD.Existing rank
Section, LCD manufactures field, generally uses silk-screen mode by fluid sealant and conductiving point silk-screen on glass, but the silk screen on half tone saves
When protruding foreign body on point or half tone can cause silk-screen epoxy glue or conducting resinl, inevitably weigh wounded on LCD electro-conductive glass
Polyimide (i.e. PI layer), when LCD shows, scratch area development defines exception, this give product yield cause
Serious impact, this problem directly limits to the development scale of LCD manufacturing firm, and serious affects its business efficiency, leads
Cause manufacturing cost increases severely.
[summary of the invention]
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of method that in the LCD of preventing production process, PI weighs wounded,
Acted on the pressure of PI layer by the node of unloading half tone, effectively stopped the damage to PI layer of half tone node and scraper, improve
The stability of LCD operation, reduces LCD fraction defective in silk-screen printing process, saves manufacturing cost.
The technical scheme is that and be achieved in that: method that in a kind of LCD of preventing production process of the present invention, PI weighs wounded, it
Including step: A, silk-screen, by half tone by fluid sealant and conducting resinl silk-screen silk-screen respectively on the glass being coated with PI；B, spray
Powder, sprays uniformly by plastic ball powder on the glass after step A silk-screen, and plastic ball powder is used for isolating upper and lower two sheet glass；C、
Pressure box, is pressed together glass up and down after dusting in step B by hot pressing, forms LCD liquid crystal cell chamber, and it improves it
Place is: before described step A, and plastic ball is attached to the printing surface of half tone the most thick and fast, and the diameter of described plastic ball is little
Thickness in described LCD liquid crystal cell chamber.
Preferably, the step of the described printing surface that plastic ball is attached to half tone the most thick and fast includes:
(1) by powder injection process by uniform for described plastic ball spray attachment on the glass substrate, this is sprayed with the glass substrate of plastic ball for turning
Move plastic ball；
(2) glass substrate being sprayed with plastic ball in step (1) is placed on print station；
(3) glass substrate on print station in step (2) being carried out silk-screen operation, plastic ball is transferred to net from the surface of glass substrate
The printing surface of version.
Preferably, the density that the plastic ball of the glass substrate after step (1) is dusted dusts is 100/square millimeter.
Preferably, repeat step (1) to (3), make the density that the plastic ball on the printing surface of described half tone dusts for being not less than
600/square millimeter.
Preferably, described plastic ball dust for diameter not wait plastic ball mixing.
Preferably, a diameter of 4 microns to 8 microns of described plastic ball.
The beneficial effects of the present invention is: the invention provides a kind of method that in the LCD of preventing production process, PI weighs wounded, by unloading
The node of contained network version acts on the pressure of PI layer, has effectively stopped the damage to PI layer of half tone node and scraper, has improve LCD
The stability of operation, reduces LCD fraction defective in silk-screen printing process, saves manufacturing cost.
[detailed description of the invention]
Below by detailed description of the invention, the invention will be further described:
The method that in a kind of LCD of preventing production process that the present invention discloses, PI weighs wounded, it includes step: A, silk-screen, by net
Version by fluid sealant and conducting resinl silk-screen silk-screen respectively on the glass being coated with PI；B, dust, plastic ball powder is sprayed uniformly
On the glass after step A silk-screen, plastic ball powder is used for isolating upper and lower two sheet glass；C, pressure box, by hot pressing by step B
Middle glass up and down after dusting presses together, and forms LCD liquid crystal cell chamber, before above-mentioned steps A, plastic ball is the closeest
Being attached to the printing surface of half tone, the diameter of above-mentioned plastic ball is less than the thickness in described LCD liquid crystal cell chamber, so, at silk-screen collection
Time, the pressure of silk-screen scraper is by these numerous small sphere equilibrium carryings rather than acts directly on handing over through weft yarn of silk screen
On the node that fork is protruding, thus it is excessive and cause and weigh PI wounded to reduce local pressure that the projection at because of node causes.
Embodiment one
The step of the above-mentioned printing surface that plastic ball is attached to half tone the most thick and fast includes:
(1) by powder injection process by uniform for described plastic ball spray attachment on the glass substrate, this glass substrate being sprayed with plastic ball is used
In transfer plastic ball；
(2) glass substrate being sprayed with plastic ball in step (1) is placed on print station；
(3) glass substrate on print station in step (2) being carried out silk-screen operation, plastic ball shifts from the surface of glass substrate
Printing surface to half tone.
Preferably, the density that the plastic ball of the glass substrate after step (1) is dusted dusts is 100/square millimeter.
Preferably, repeat step (1) to (3), make the density that the plastic ball on the printing surface of described half tone dusts for being not less than
600/square millimeter；Through repeatedly silk-screen on the glass baseplate sprayed powder, plastic ball is made to adhere on half tone and can reach
Enough density, more effectively avoids weighing PI wounded in LCD production process.
Preferably, described plastic ball dust for diameter not wait plastic ball mixing.
Preferably, a diameter of 4 microns to 8 microns of described plastic ball.
Embodiment two
The method that in a kind of LCD of preventing production process that the present invention discloses, PI weighs wounded, it includes step: A, silk-screen, by net
Version by fluid sealant and conducting resinl silk-screen silk-screen respectively on the glass being coated with PI；B, dust, plastic ball powder is sprayed uniformly
On the glass after step A silk-screen, plastic ball powder is used for isolating upper and lower two sheet glass；C, pressure box, by hot pressing by step B
Middle glass up and down after dusting presses together, and forms LCD liquid crystal cell chamber, before above-mentioned steps A, plastic ball is the closeest
Being attached to the printing surface of half tone, the diameter of above-mentioned plastic ball is less than the thickness in described LCD liquid crystal cell chamber collection.
The step of the above-mentioned printing surface that plastic ball is attached to half tone the most thick and fast includes:
(1) being sprayed uniformly on the glass substrate by powder injection process by the plastic ball of a diameter of 6 microns, this is sprayed with the glass of plastic ball
Glass substrate is used for shifting plastic ball；
(2) glass substrate of the plastic ball being sprayed with a diameter of 6 microns in step (1) is placed on print station, simultaneously by diameter
It is the plastic balls of 5 microns and a diameter of 4 microns printing surfaces that are sprayed on half tone successively；
(3) glass substrate on print station in step (2) being carried out silk-screen operation, plastic ball shifts from the surface of glass substrate
Printing surface to half tone.
In the present embodiment, between glass substrate and half tone, use the plastic ball of three layers of different-diameter, during silk-screen, logical between plastic ball
Cross the sliding of sphere, well unloaded the pressure that half tone node acts on PI, stopped PI in LCD production process and weighed wounded
Problem.
Following table is to use this to prevent method that in LCD production process, PI weighs wounded from improving the experimental data before and after PI weighs problem wounded:
Upper table shows, after taking to prevent the method that in LCD production process, PI weighs wounded, the ratio that in silk-screen printing process, PI weighs wounded is obvious
Reduce, improve the yields of LCD, reduce the wasting of resources, saved enterprise's production cost.
Described above is only presently preferred embodiments of the present invention, and above-mentioned specific embodiment is not limitation of the present invention.At this
In bright technological thought category, various deformation and amendment can occur, all those of ordinary skill in the art institute as described above
Retouching, amendment or the equivalent made, belongs to the scope that the present invention is protected.
Claims (6)
1. preventing the method that in LCD production process, PI weighs wounded, it includes step: A, silk-screen, passes through
Half tone by fluid sealant and conducting resinl silk-screen silk-screen respectively on the glass being coated with PI；B, dust, by plastic cement
Ball powder sprays uniformly on the glass after step A silk-screen, and plastic ball powder is used for isolating upper and lower two sheet glass；
C, pressure box, pressed together glass up and down after dusting in step B by hot pressing, form LCD liquid crystal
Box chamber, it is characterised in that before described step A, is attached to the printing of half tone the most thick and fast by plastic ball
Face, the diameter of described plastic ball is less than the thickness in described LCD liquid crystal cell chamber.
Method the most according to claim 1, it is characterised in that described by the most attached for plastic ball
The step at the printing surface of half tone to include:
(1) by powder injection process by uniform for described plastic ball spray attachment on the glass substrate, this is sprayed with plastic ball
Glass substrate be used for shifting plastic ball；
(2) glass substrate being sprayed with plastic ball in step (1) is placed on print station；
(3) glass substrate on print station in step (2) being carried out silk-screen operation, plastic ball is from glass substrate
Surface be transferred to the printing surface of half tone.
Method the most according to claim 2, it is characterised in that the glass base after step (1) is dusted
The density that the plastic ball of plate dusts is 100/square millimeter.
The most according to the method in claim 2 or 3, it is characterised in that repeat step (1) to (3),
Make the density that the plastic ball on the printing surface of described half tone dusts for not less than 600/square millimeter.
Method the most according to claim 4, it is characterised in that described plastic ball dusts for diameter
Plastic ball mixing.
Method the most according to claim 1, it is characterised in that a diameter of 4 microns of described plastic ball
To 8 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510258882.6A CN106292019B (en) | 2015-05-20 | 2015-05-20 | A method of prevent PI in LCD production process from weighing wounded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510258882.6A CN106292019B (en) | 2015-05-20 | 2015-05-20 | A method of prevent PI in LCD production process from weighing wounded |
Publications (2)
| Publication Number | Publication Date |
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| CN106292019A true CN106292019A (en) | 2017-01-04 |
| CN106292019B CN106292019B (en) | 2019-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510258882.6A Active CN106292019B (en) | 2015-05-20 | 2015-05-20 | A method of prevent PI in LCD production process from weighing wounded |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110045549A (en) * | 2019-03-22 | 2019-07-23 | 湖南飞优特电子科技有限公司 | A kind of poorly controlled device of LCD powder ball |
| CN111258102A (en) * | 2020-03-19 | 2020-06-09 | 江门亿都半导体有限公司 | Method for manufacturing liquid crystal display |
| CN112519362A (en) * | 2020-11-30 | 2021-03-19 | 深圳市宇顺电子股份有限公司 | LCD empty box manufacturing method and application |
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| JPH11276709A (en) * | 1998-03-26 | 1999-10-12 | Gp Advance:Kk | Device for lifting and polishing pachinko ball |
| US20050041189A1 (en) * | 2003-08-22 | 2005-02-24 | Lg.Philips Lcd Co., Ltd. | Liquid crystal display device preventing electronic corosion and method of fabricating the same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110045549A (en) * | 2019-03-22 | 2019-07-23 | 湖南飞优特电子科技有限公司 | A kind of poorly controlled device of LCD powder ball |
| CN110045549B (en) * | 2019-03-22 | 2023-12-26 | 湖南飞优特电子科技有限公司 | LCD powder cluster bad control device |
| CN111258102A (en) * | 2020-03-19 | 2020-06-09 | 江门亿都半导体有限公司 | Method for manufacturing liquid crystal display |
| CN111258102B (en) * | 2020-03-19 | 2022-07-12 | 江门亿都半导体有限公司 | Method for manufacturing liquid crystal display |
| CN112519362A (en) * | 2020-11-30 | 2021-03-19 | 深圳市宇顺电子股份有限公司 | LCD empty box manufacturing method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106292019B (en) | 2019-11-29 |
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Effective date of registration: 20190628 Address after: 518000 Third Floor, Block B, Yuxiang Science Park, 20 Guangming Street, Guangming New District, Shenzhen City, Guangdong Province Applicant after: SHENZHEN ELECHEM TECHNOLOGY LTD. Address before: 518000 East of 2nd Floor, 50 Building B, Xilitanglang Industrial Zone, Nanshan District, Shenzhen City, Guangdong Province Applicant before: Liu Pingang |
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