CN108363223A - A kind of liquid crystal display production method for reducing bubble and generating - Google Patents
A kind of liquid crystal display production method for reducing bubble and generating Download PDFInfo
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- CN108363223A CN108363223A CN201810054904.0A CN201810054904A CN108363223A CN 108363223 A CN108363223 A CN 108363223A CN 201810054904 A CN201810054904 A CN 201810054904A CN 108363223 A CN108363223 A CN 108363223A
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- liquid crystal
- crystal display
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
A kind of liquid crystal display production method for reducing bubble and generating, including S1：Glass substrate is cleaned by ultrasonic using alcohol；S2：Glass substrate after cleaning is put into baking oven and is dried；S3：Judge the conductive polarity of glass substrate, and young in the upper uniformly sprinkling spacer beads of the conductive one side of glass substrate；S4：The one side of two panels glass substrate conduction is closed up in opposite directions, and hot-press solidifying is carried out to the both sides of glass substrate using pressuring machine, pressurization encapsulation forms liquid crystal cell；S5：Vacuumize process is carried out to liquid crystal cell inside, and carries out liquid filling on one side liquid crystal cell is unencapsulated, waits for carrying out thorough seal after the completion of liquid filling；S6：It is cut along cut edge to be cut, obtains required liquid crystal display.The generation that bubbles of vacuum and liquid crystal bubbles can be effectively reduced improves the production efficiency of liquid crystal display.
Description
Technical field
The present invention relates to liquid crystal display fields, and in particular to a kind of liquid crystal display making side for reducing bubble and generating
Method.
Background technology
Liquid crystal display is a liquid crystal cell made of upper and lower two panels electro-conductive glass, and filled with liquid crystal in box, surrounding is with close
Polaroid is posted in the sealing of closure material-glue frame, two outsides of box, and the gap between sheet glass up and down in liquid crystal cell, is usual
Described box is thick, and the control of box thickness be liquid crystal display manufacture in the most key process；And the presence of bubble, then seriously
The quality of liquid crystal display is affected, and bubble is divided into bubbles of vacuum and liquid crystal bubbles, occurs among bubbles of vacuum, that is, liquid crystal cell
The bubble of flakes, and liquid crystal bubbles are then usually expressed as the angle bubble, the centre that are generated due to not filling liquid crystal in liquid crystal cell
Bubble or sealing bubble etc., in order to improve the production efficiency and quality of liquid crystal display, improving and solving air bubble problem becomes weight
One of research topic wanted.
Invention content
In view of the deficiencies of the prior art, the purpose of the present invention is intended to provide a kind of liquid crystal display system that reduction bubble generates
Make method, the generation of bubbles of vacuum and liquid crystal bubbles can be effectively reduced, improves the production efficiency of liquid crystal display.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of liquid crystal display production method for reducing bubble and generating, including
S1：Glass substrate is cleaned by ultrasonic using alcohol；
S2：Glass substrate after cleaning is put into baking oven and is dried；
S3：Judge the conductive polarity of glass substrate, and young in the upper uniformly sprinkling spacer beads of the conductive one side of glass substrate；
S4：The one side of two panels glass substrate conduction is closed up in opposite directions, and the both sides of glass substrate are carried out using pressuring machine
Hot-press solidifying, pressurization encapsulation form liquid crystal cell；
S5：Vacuumize process is carried out to liquid crystal cell inside, and carries out liquid filling on one side liquid crystal cell is unencapsulated, waits for that liquid filling is complete
At rear carry out thorough seal；
S6：It is cut along cut edge to be cut, obtains required liquid crystal display.
Further, the pressuring machine in step S4 uses conventional pressurized machine, and the moulding pressure of pressuring machine is set as 0.08~
0.5bar。
Further, the pressuring machine in step S4 uses semi-automatic pressuring machine, the moulding pressure of pressuring machine to be set as 0.07
~~0.3kgf/cm2.
Further, manual liquid filling, pumpdown time is used to be not less than 5min in step S5, filling time is more than 10min.
Further, liquid filling is carried out using automatic machine in step S5, the pumpdown time is no less than 5min, and filling time is more than
10min。
Further, the gap pearl son uses plastics beaded particles.
Further, drying time is 10 minutes in step S2, and temperature is 50 DEG C.
The beneficial effects of the present invention are：
Change moulding pressure, to reduce glass deformation, reduces the probability that bubbles of vacuum generates；Control vacuum time simultaneously
And filling time, the probability that liquid crystal bubbles generate is reduced, the production efficiency and quality of liquid crystal display are improved.
Description of the drawings
Fig. 1 is liquid crystal display production method flow chart of the present invention.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the present invention is described further：
Embodiment one
As shown in Figure 1, a kind of liquid crystal display production method for reducing bubble and generating, including
S1：Glass substrate is cleaned by ultrasonic using alcohol.
S2：Glass substrate after cleaning is put into baking oven and is dried, drying time is 10 minutes, and temperature is 50 DEG C.
S3：Judge the conductive polarity of glass substrate, and young in the upper uniformly sprinkling spacer beads of the conductive one side of glass substrate；
The present embodiment sprays spacer beads son using dry sprayig process, spacer beads son is carried with high pure nitrogen, by special nozzle, by spacer beads
Son's sprinkling on the glass substrate, and is adjusted nozzle height, sprinkling tolerance, spraying time during sprinkling, between grasp
The uniformity of spacer beads son dispersion can be improved after the fall time of pearl son, the sedimentation regularity of distribution, while in the process of sandblasting
In maintain the cleannes of glass substrate.
S4：The one side of two panels glass substrate conduction is closed up in opposite directions, and the both sides of glass substrate are carried out using pressuring machine
Hot-press solidifying, pressurization encapsulation form liquid crystal cell；Pressuring machine uses conventional pressurized machine, the moulding pressure of pressuring machine to set in the present embodiment
It is set to 0.08~0.5bar.
S5：Vacuumize process is carried out to liquid crystal cell inside, and carries out liquid filling on one side liquid crystal cell is unencapsulated, waits for that liquid filling is complete
At rear carry out thorough seal；
S6：It is cut along cut edge to be cut, obtains required liquid crystal display.
To obtain the optimum pressurized pressure of conventional pressurized machine, contrived experiment one：
The experimental situation of experiment one is identical environment temperature, and identical is gradually increased in the close-knitted degree of spacer beads
Moulding pressure, moulding pressure progressively increase to 0.60bar from 0bar, carry out no less than 10 times surveys to liquid crystal display respectively
Examination, test result is as follows table table 1：
According to experiment one it is found that in the close-knitted degree of temperature and spacer beads in 80~100PCS/mm2In the case of, pressurization pressure
Liquid crystal display of the power within the scope of 0.07~0.5bar i.e. be not present vacuum gap (i.e. bubble), 0.5bar~0.6bar it
Between occur 1 bubble respectively and generate, but the lack of homogeneity of the spacer beads son sprinkling under 0bar~0.07bar pressure causes
Liquid crystal display easy tos produce bubble, therefore the optimum pressurized pressure limit that can obtain conventional pressurized machine is 0.08~0.5bar.And
The density for also having gradually increased spacer beads son in this experiment is tested again, and the density that can obtain spacer beads son distribution is smaller, no
Easily there is bubble；The density of spacer beads son distribution is bigger, and the risk for bubble occur is bigger.
Embodiment two
Setting the pressuring machine in embodiment one to semi-automatic pressuring machine, the optimum pressurized pressure of pressuring machine is 0.07~
0.3kgf/cm2。
To obtain the optimum pressurized pressure of semi-automatic pressuring machine, contrived experiment two：
Experimental situation is identical environment temperature, and in the case that spacer beads it is close-knitted degree it is identical gradually increase pressurization pressure
Power, moulding pressure progressively increase to 0.5kgf/cm2 from 0kgf/cm2, carry out no less than 10 times surveys to liquid crystal display respectively
Examination, test result is as follows table table 2：
According to experiment two it is found that in the close-knitted degree of temperature and spacer beads in 80~100PCS/mm2In the case of, pressurization pressure
Vacuum gap (bubble is not present) is not present in liquid crystal display of the power within the scope of 0.06~0.3kgf/cm2,
Occur multiple bubble between 0.35kgf/cm2~0.5kgf/cm2 respectively to generate, but 0kgf/cm2~0.06kgf/cm2 is pressed
The lack of homogeneity of spacer beads son sprinkling under power, causes liquid crystal display to easy to produce bubble, therefore can obtain semi-automatic pressuring machine
Optimum pressurized pressure limit be 0.07~0.3kgf/cm2.
Embodiment three
It carries out being improved the liquid filling method in step S5 on the basis of embodiment one or embodiment two, the present embodiment
Using manual liquid filling, the pumpdown time is not less than 5min, and filling time is more than 10min, can effectively reduce the risk of bubble appearance,
Specific experiment data are shown in Table 3, and wherein UPL represents the quantity of liquid crystal cell separation.
Example IV
It carries out being improved the liquid filling method in step S5 on the basis of embodiment one or embodiment two, the present embodiment
Liquid filling is carried out using automatic machine, the pumpdown time is no less than 5min, and filling time is more than 10min, can effectively reduce bubble appearance
Risk, specific experiment data are shown in Table 3.
Table 3
Gap pearl son of the present invention use plastics beaded particles, select plastics beaded particles the reasons why it is as follows：
1) coefficient of thermal expansion of plastic gap pearl son is expanded close to the coefficient of thermal expansion of liquid crystal material, at high temperature liquid crystal
When, it can prevent gap pearl son movement from box thickness being made to change.
2) plastics beaded particles have elasticity, and liquid crystal display can be made bearing ambient pressure and be unlikely to deform and can accurately control
Box processed is thick.
3) plastics pearl particle diameter degree of error is smaller, moderate strength, light-proofness are preferable, to the damage of glass substrate compared with
It is small.
It will be apparent to those skilled in the art that technical solution that can be as described above and design, make various other
Corresponding change and deformation, and all these changes and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (7)
1. a kind of liquid crystal display production method for reducing bubble and generating, which is characterized in that including
S1：Glass substrate is cleaned by ultrasonic using alcohol；
S2：Glass substrate after cleaning is put into baking oven and is dried；
S3：Judge the conductive polarity of glass substrate, and young in the upper uniformly sprinkling spacer beads of the conductive one side of glass substrate；
S4：The one side of two panels glass substrate conduction is closed up in opposite directions, and hot pressing is carried out to the both sides of glass substrate using pressuring machine
Solidification, pressurization encapsulation form liquid crystal cell；
S5：Vacuumize process is carried out to liquid crystal cell inside, and carries out liquid filling on one side liquid crystal cell is unencapsulated, after the completion of waiting for liquid filling
Carry out thorough seal；
S6：It is cut along cut edge to be cut, obtains required liquid crystal display.
2. the liquid crystal display production method according to claim 1 for reducing bubble and generating, which is characterized in that in step S4
Pressuring machine use conventional pressurized machine, the moulding pressure of pressuring machine is set as 0.08~0.5bar.
3. the liquid crystal display production method according to claim 1 for reducing bubble and generating, which is characterized in that in step S4
Pressuring machine use semi-automatic pressuring machine, the moulding pressure of pressuring machine is set as 0.07~~0.3kgf/cm2.
4. the liquid crystal display production method according to claim 2 or 3 for reducing bubble and generating, which is characterized in that step
Manual liquid filling, pumpdown time is used to be not less than 5min in S5, filling time is more than 10min.
5. the liquid crystal display production method according to claim 2 or 3 for reducing bubble and generating, which is characterized in that step
Liquid filling is carried out using automatic machine in S5, the pumpdown time is no less than 5min, and filling time is more than 10min.
6. the liquid crystal display production method according to claim 1 for reducing bubble and generating, which is characterized in that the gap
Pearl son uses plastics beaded particles.
7. the liquid crystal display production method according to claim 1 for reducing bubble and generating, which is characterized in that in step S2
Drying time is 10 minutes, and temperature is 50 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810054904.0A CN108363223A (en) | 2018-01-19 | 2018-01-19 | A kind of liquid crystal display production method for reducing bubble and generating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810054904.0A CN108363223A (en) | 2018-01-19 | 2018-01-19 | A kind of liquid crystal display production method for reducing bubble and generating |
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ID=63006418
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|---|---|---|---|
| CN201810054904.0A Pending CN108363223A (en) | 2018-01-19 | 2018-01-19 | A kind of liquid crystal display production method for reducing bubble and generating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111290180A (en) * | 2020-02-27 | 2020-06-16 | 亚世光电股份有限公司 | Technological method for producing large-size LCD (liquid Crystal display) in perfusion mode |
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|---|---|---|---|---|
| US6094244A (en) * | 1995-12-27 | 2000-07-25 | Kabushiki Kaisha Toshiba | Reflective liquid crystal display device |
| CN1308243A (en) * | 1999-12-24 | 2001-08-15 | 夏普公司 | LCD element and its making process |
| CN1605907A (en) * | 2003-10-09 | 2005-04-13 | 奇美电子股份有限公司 | Liquid crystal display panel and manufacturing method thereof |
| CN101051156A (en) * | 2006-04-05 | 2007-10-10 | Nec液晶技术株式会社 | Liquid crystal display panel and method of manufacturing the same |
| CN101169563A (en) * | 2006-10-23 | 2008-04-30 | 比亚迪股份有限公司 | Production process control method for reducing liquid crystal bubble generation in LCD production |
| CN101947529A (en) * | 2010-09-02 | 2011-01-19 | 东莞市飞尔液晶显示器有限公司 | Liquid crystal display screen hollow cell cleaning process before crystal filling |
| CN205176422U (en) * | 2015-10-30 | 2016-04-20 | 唐楷 | Anti -dazzle eyepiece piece and car glare proof mirror |
| CN106896590A (en) * | 2017-02-28 | 2017-06-27 | 精电(河源)显示技术有限公司 | A kind of flexible liquid crystal display enters liquid crystal and sealing production technology |
-
2018
- 2018-01-19 CN CN201810054904.0A patent/CN108363223A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6094244A (en) * | 1995-12-27 | 2000-07-25 | Kabushiki Kaisha Toshiba | Reflective liquid crystal display device |
| CN1308243A (en) * | 1999-12-24 | 2001-08-15 | 夏普公司 | LCD element and its making process |
| CN1605907A (en) * | 2003-10-09 | 2005-04-13 | 奇美电子股份有限公司 | Liquid crystal display panel and manufacturing method thereof |
| CN101051156A (en) * | 2006-04-05 | 2007-10-10 | Nec液晶技术株式会社 | Liquid crystal display panel and method of manufacturing the same |
| CN101169563A (en) * | 2006-10-23 | 2008-04-30 | 比亚迪股份有限公司 | Production process control method for reducing liquid crystal bubble generation in LCD production |
| CN101947529A (en) * | 2010-09-02 | 2011-01-19 | 东莞市飞尔液晶显示器有限公司 | Liquid crystal display screen hollow cell cleaning process before crystal filling |
| CN205176422U (en) * | 2015-10-30 | 2016-04-20 | 唐楷 | Anti -dazzle eyepiece piece and car glare proof mirror |
| CN106896590A (en) * | 2017-02-28 | 2017-06-27 | 精电(河源)显示技术有限公司 | A kind of flexible liquid crystal display enters liquid crystal and sealing production technology |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111290180A (en) * | 2020-02-27 | 2020-06-16 | 亚世光电股份有限公司 | Technological method for producing large-size LCD (liquid Crystal display) in perfusion mode |
| CN111290180B (en) * | 2020-02-27 | 2022-10-11 | 亚世光电股份有限公司 | Technological method for producing large-size LCD in perfusion mode |
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Application publication date: 20180803 |
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