CN112853268A - Vehicle-mounted display screen coating process - Google Patents
Vehicle-mounted display screen coating process Download PDFInfo
- Publication number
- CN112853268A CN112853268A CN202110176911.XA CN202110176911A CN112853268A CN 112853268 A CN112853268 A CN 112853268A CN 202110176911 A CN202110176911 A CN 202110176911A CN 112853268 A CN112853268 A CN 112853268A
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- China
- Prior art keywords
- display screen
- coating
- resistance
- vehicle
- film
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000000576 coating method Methods 0.000 title claims abstract description 41
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 239000007888 film coating Substances 0.000 claims abstract description 15
- 238000009501 film coating Methods 0.000 claims abstract description 15
- 239000013077 target material Substances 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000007689 inspection Methods 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000004544 sputter deposition Methods 0.000 claims abstract 2
- 239000000523 sample Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052709 silver Inorganic materials 0.000 abstract description 6
- 239000004332 silver Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002834 transmittance Methods 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 abstract 2
- 238000003475 lamination Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 14
- 238000005259 measurement Methods 0.000 description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/08—Oxides
- C23C14/086—Oxides of zinc, germanium, cadmium, indium, tin, thallium or bismuth
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/56—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
- C23C14/568—Transferring the substrates through a series of coating stations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application provides a vehicle-mounted display screen coating process, which comprises the following steps: cleaning the surface of the display screen; selecting a high-resistance target material on a coating host machine to carry out vacuum sputtering coating on the display screen; carrying out resistance detection on the display screen after the coating by using a high impedance tester; and carrying out film coating inspection on the display screen after film coating. The beneficial effect of this application is: the high-resistance target material is adopted for coating when the display screen is coated, so that the problem of abnormal lamination caused by the fact that the silver paste coating film is needed for the low-resistance polaroid is solved on the premise that the high resistance and the high transmittance of the display screen are met, and the problem of abnormal touch of the display screen is solved.
Description
Technical Field
The disclosure relates to the technical field of glass display screen coating, in particular to a vehicle-mounted display screen coating process.
Background
In the prior art, low-resistance ITO (generally referred to as indium tin oxide) plated outside a display screen has an interference effect on a touch function, a low-resistance polaroid needs to be attached, the low-resistance polaroid needs to be connected by using line silver paste, and the line silver paste can cause poor attachment of a module, so that the defective rate of products is high.
Disclosure of Invention
The application aims at solving the problems and provides a vehicle-mounted display screen coating process.
In a first aspect, the application provides a vehicle-mounted display screen coating process, which comprises the following steps:
cleaning the surface of the display screen;
selecting a high-resistance target material on a coating host machine to coat a display screen;
carrying out resistance detection on the display screen after the coating by using a high impedance tester;
and carrying out film coating inspection on the display screen after film coating.
According to the technical scheme provided by the embodiment of the application, the selecting of the high-resistance target material on the coating host machine to coat the display screen specifically comprises the following steps: when the coating host machine carries out coating film to the display screen, the coating film parameter sets to: vehicle speed 0.8-1.0m/min, temperature: 80-120 ℃, power: 3.5-5.0 KW.
According to the technical scheme provided by the embodiment of the application, the resistance detection of the display screen after the film coating by using the high-impedance tester specifically comprises the following steps:
paving oil paper on the test platform, and placing the display screen on the surface of the oil paper;
dipping alcohol by using dust-free cloth, and wiping the surface of the display screen;
and (4) contacting a measuring probe of the high-impedance tester with the surface of the display screen to detect the resistance.
According to the technical scheme provided by the embodiment of the application, the method for detecting the resistance by contacting the surface of the display screen with the measuring probe of the high-impedance tester further comprises the following steps: and verifying the high-resistance tester by using the verifying block.
The invention has the beneficial effects that: the application provides a vehicle-mounted display screen coating process, adopt high resistance target material to carry out the coating film when coating the film to the display screen, under the prerequisite that satisfies display screen high resistance, high transmissivity, solved the unusual problem of laminating bubble that low resistance polaroid needs silver thick liquid to coat the film and bring, solved the unusual problem of display screen touch simultaneously, improved display screen coating quality, simplified coating process, satisfied market and customer's user demand better.
Drawings
FIG. 1 is a flow chart of a first embodiment of the present application;
fig. 2 is a flowchart of step S3 in fig. 1.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings, and the description of the present section is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention in any way.
Fig. 1 is a schematic diagram of a first embodiment of the present application, which includes the following steps:
and S1, cleaning the surface of the display screen.
And cleaning the display screen in the washing machine by using alkali liquor.
And S2, selecting a high-resistance target material on the coating host machine to coat the display screen.
Before coating, setting parameters of a coating host machine, wherein the speed is 0.8-1.0m/min, and the temperature is as follows: 80-120 ℃, power: 3.5-5.0 KW.
The film coating temperature influences the properties of the surface film layer of the product and the liquid crystal bubble of the product; the film coating can not be carried out when the vacuum degree is too low, the higher the vacuum degree is, the better the vacuum degree is, and the vacuum degree of the main vacuum cavity is less than 5.0E-3 mbar; the low power affects the product film layer, the film layer is thin and the sheet resistance is high, and the high power affects the product film layer, the film layer is thick and the sheet resistance is low; the problem that the target cannot be started due to low gas flow is solved, the vacuum degree of a coating cavity is influenced due to high gas flow, and the gas flow is set to be 250-350 sccm in the embodiment; the performance of a surface film layer of a product is influenced by the fact that the vehicle speed is too fast or too slow; the air extraction time range is 55-75 s; the deflation time ranges from 25 to 40 s.
In the step, the step of loading the display screen is carried out before film coating, and the step of unloading the display screen is carried out after film coating.
A step of loading pieces:
an operator wears the anti-static clothes, anti-static gloves and anti-static hand rings according to the specification;
the middle part of the edge of the glass is clamped by two hands and placed between the upper and lower rows of clamps of the film coating trolley, the hands of the glass are loosened after the glass is stabilized in the clamps, and the glass is sequentially loaded from the bottom layer to the bottom layer.
The following steps:
the glass is sequentially taken down from the film coating trolley by two hands from bottom to top, and the edge of the glass needs to be paid attention to when the glass is taken, so that the edge damage caused by improper force is avoided;
clamping two sides of the glass by two hands and putting the coated glass into an inclined box.
And S3, using a high impedance tester to perform resistance detection on the display screen after the film is coated.
The steps specifically include, as shown in fig. 2:
and S31, spreading the oiled paper on the test platform, and placing the display screen on the surface of the oiled paper.
And S32, dipping alcohol by using a dust-free cloth, and wiping the surface of the display screen.
And S33, contacting the measuring probe of the high-impedance tester with the surface of the display screen to detect the resistance.
Before step S33, the method further includes: and verifying the high-resistance tester by using the verifying block.
In this embodiment, use the high impedance tester to carry out the square resistance test to the display screen after the coating film, the general mode among the prior art is to use four probe square resistance appearance, keep flat the product in the PP case, the perpendicular contact glass of square resistance appearance during the measurement, therefore the measuring means of four probe square resistance appearance requires highlyer to test operation mode, consequently influence measuring accuracy and efficiency, and the measurement scheme of this embodiment only need touch the glass surface gently with the probe of high impedance tester can measure, it is lower to measure operation mode's requirement, the accuracy is high, measurement efficiency is high.
And S4, carrying out film coating inspection on the display screen after film coating.
The inspection content of the step comprises the steps of detecting the appearance of the coating film and performing spot inspection on the performance of the film layer.
In the prior art, a low-resistance ITO (indium tin oxide) conductive film is plated on the surface of glass, the glass needs to use a low-resistance polaroid in the module processing process, the low-resistance polaroid needs to be connected by using silver paste, and the silver paste can cause poor module bonding. The invention directly cancels the sticking of the low-resistance polaroid, and the resistivity of the high-resistance film reaches: 1*108-1*109Ω/port, transmittance: the touch screen display screen has the advantages that the touch screen display.
The principles and embodiments of the present application are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present application, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the invention.
Claims (4)
1. A vehicle-mounted display screen coating process is characterized by comprising the following steps:
cleaning the surface of the display screen;
selecting a high-resistance target material on a coating host machine to carry out vacuum sputtering coating on the display screen;
carrying out resistance detection on the display screen after the coating by using a high impedance tester;
and carrying out film coating inspection on the display screen after film coating.
2. The vehicle-mounted display screen coating process according to claim 1, wherein the selecting of the high-resistance target material on the coating host machine for coating the display screen specifically comprises: when the coating host machine carries out coating film to the display screen, the coating film parameter sets to: vehicle speed 0.8-1.0m/min, temperature: 80-120 ℃, power: 3.5-5.0 KW.
3. The vehicle-mounted display screen coating process according to claim 1, wherein the resistance detection of the coated display screen by using a high impedance tester specifically comprises the following steps:
paving oil paper on the test platform, and placing the display screen on the surface of the oil paper;
dipping alcohol by using dust-free cloth, and wiping the surface of the display screen;
and (4) contacting a measuring probe of the high-impedance tester with the surface of the display screen to detect the resistance.
4. The vehicle-mounted display screen coating process according to claim 3, wherein the resistance detection is performed by contacting a measuring probe of the high-impedance tester with the surface of the display screen, and the process further comprises the following steps: and verifying the high-resistance tester by using the verifying block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110176911.XA CN112853268A (en) | 2021-02-07 | 2021-02-07 | Vehicle-mounted display screen coating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110176911.XA CN112853268A (en) | 2021-02-07 | 2021-02-07 | Vehicle-mounted display screen coating process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112853268A true CN112853268A (en) | 2021-05-28 |
Family
ID=75989478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110176911.XA Pending CN112853268A (en) | 2021-02-07 | 2021-02-07 | Vehicle-mounted display screen coating process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112853268A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242809A (en) * | 2015-10-21 | 2016-01-13 | 江西沃格光电股份有限公司 | Touch display device and preparation method thereof |
| CN107436707A (en) * | 2017-08-02 | 2017-12-05 | 南昌欧菲光科技有限公司 | Cover sheet and touch-screen cover plate |
| CN108037850A (en) * | 2017-12-11 | 2018-05-15 | 芜湖长信科技股份有限公司 | A kind of method for improving vehicular touch screen insulation impedance |
| CN109280886A (en) * | 2018-08-09 | 2019-01-29 | 滁州盛诺电子科技有限公司 | A kind of high resistance film and its preparation process and application |
-
2021
- 2021-02-07 CN CN202110176911.XA patent/CN112853268A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242809A (en) * | 2015-10-21 | 2016-01-13 | 江西沃格光电股份有限公司 | Touch display device and preparation method thereof |
| US20180314094A1 (en) * | 2015-10-21 | 2018-11-01 | Wgtech (Jiangxi) Co., Ltd. | Touch control display device having high resistance layer |
| CN107436707A (en) * | 2017-08-02 | 2017-12-05 | 南昌欧菲光科技有限公司 | Cover sheet and touch-screen cover plate |
| CN108037850A (en) * | 2017-12-11 | 2018-05-15 | 芜湖长信科技股份有限公司 | A kind of method for improving vehicular touch screen insulation impedance |
| CN109280886A (en) * | 2018-08-09 | 2019-01-29 | 滁州盛诺电子科技有限公司 | A kind of high resistance film and its preparation process and application |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230217 Address after: 239000, No. 588, Hangzhou North Road, Chuzhou City, Anhui Province Applicant after: Anhui Shengnuo Technology Group Co.,Ltd. Address before: No.18 Minhui Road, Jingbin Industrial Park, Wuqing District, Tianjin Applicant before: TIANJIN SHENGNUO ELECTRONIC TECHNOLOGY CO.,LTD. |
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Application publication date: 20210528 |