CN115027162A - Ink-jet printing method for improving color consistency of matte black oil of LED (light-emitting diode) board - Google Patents
Ink-jet printing method for improving color consistency of matte black oil of LED (light-emitting diode) board Download PDFInfo
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- CN115027162A CN115027162A CN202210830369.XA CN202210830369A CN115027162A CN 115027162 A CN115027162 A CN 115027162A CN 202210830369 A CN202210830369 A CN 202210830369A CN 115027162 A CN115027162 A CN 115027162A
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- ink
- matte black
- printing method
- black oil
- color consistency
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000007641 inkjet printing Methods 0.000 title claims abstract description 23
- 238000007639 printing Methods 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 229910000679 solder Inorganic materials 0.000 claims abstract description 14
- 238000007711 solidification Methods 0.000 claims abstract description 7
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 238000003892 spreading Methods 0.000 claims abstract description 5
- 238000009792 diffusion process Methods 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000001723 curing Methods 0.000 claims description 3
- 238000003848 UV Light-Curing Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0081—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Led Device Packages (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
Abstract
The invention discloses an ink-jet printing method for improving color consistency of matte black oil of an LED (light-emitting diode) board, which comprises the following steps of: step one, manufacturing a solder mask layer; manufacturing a solder mask layer on the PCB; step two, spreading ink drops; the welding-proof ink-jet technology is adopted, and the ink drops are arranged in a staggered and uniformly dispersed manner; semi-curing the ink drops; spreading the printing ink for a certain time, adopting UV laser to quickly follow up the solder mask ink jet equipment to accelerate semi-solidification of the printing ink drops, and controlling the printing ink drops in a proper fluidity range, so that microscopic fluctuating small points which are densely, uniformly and respectively staggered are formed on the surface of the PCB, and diffuse reflection is formed by the uniform small points to realize the consistency of matte black color; by designing the ink-jet printing method, the problem that the color consistency of the matte black ink is not ideal is solved, the fact that the mini LED main board presents the color of the matte black ink with consistency is achieved, the product quality is effectively guaranteed, and the production yield is improved.
Description
Technical Field
The invention belongs to the technical field of LED plate ink-jet printing production, and particularly relates to an ink-jet printing method for improving color consistency of matte black oil of an LED plate.
Background
In the production process of the RGB LED in the prior art, the problem that the color consistency of the matte black ink cannot reach the standard due to the following reasons is solved:
1. due to the volatilization of an ink diluent and the change of personnel and parameters in the manufacturing and printing process, the color consistency of the matte black ink is not ideal in the solder-proof screen printing technology;
2. the dry film type printing ink is pressed in vacuum, the dry film type anti-welding surface is extruded under vacuum pressure, a relatively bright appearance is formed, and the matte black display effect cannot be achieved;
3. the space between the mute black mask and the lamp beads is less than 2.5mm and can not be made into a thinner black fiber filamentous structure;
the above factors are difficult to ensure the color consistency of the matte black ink, so that the product quality cannot be ensured, and the production yield is greatly reduced.
Disclosure of Invention
The embodiment of the application provides an ink-jet printing method for improving the consistency of the matte black ink color of the LED board, and by designing the ink-jet printing method, the problem that the consistency of the matte black ink color is not ideal is solved, the matte black ink color with consistency is presented on a mini LED main board, the product quality is effectively guaranteed, and the production yield is improved.
The technical scheme provided by the embodiment of the application is as follows:
an ink-jet printing method for improving color consistency of matte black oil of an LED panel comprises the following steps:
step one, manufacturing a solder mask layer; manufacturing a layer of solder mask on the PCB;
step two, spreading ink drops; the welding-proof ink-jet technology is adopted, and the ink drops are arranged in a staggered and uniformly dispersed manner;
semi-curing the ink drops; printing ink tiles to a certain time, adopts UV laser to follow up fast with the anti-welding ink jet equipment for the semi-solidification of printing ink droplet is quickened, with printing ink droplet control in a suitable mobility within range, thereby form the microcosmic fluctuation tiny dot that intensive even dislocation is respectively on the PCB face, form the diffuse reflection by even tiny dot and realize dumb black color uniformity.
The steps are suitable for ink-jet printing of the small-spacing LEDs; the distance between two lamp beads of the small-distance LED is less than or equal to 2.5 mm.
According to the invention, the electric appliance insulation can be effectively ensured by manufacturing the solder mask layer, and the smooth operation of the method is ensured. Through also carrying out the semi-solid of printing ink drop at the in-process of carrying out the tiling printing ink drop for printing ink reaches certain diffusion tiling, but does not thoroughly spread out on average again, thereby forms the microcosmic diffuse reflection surface of straggling, learns from the optics color development principle, forms the diffuse reflection by even dot and realizes dumb black color uniformity. Through the setting of above-mentioned step, its is easy and simple to handle swift, guarantees that the mini LED mainboard demonstrates the mute black ink color that has the uniformity, effectively guarantees product quality, improves the production yield.
Further, in the step one, the thickness of the solder mask layer is 20-30 μm. Through this setting, effectively guarantee that electrical insulation is good, effectively guarantee to realize the smooth and easy security of operation of mute black color uniformity.
Further, in the second step, the diameter of the ink falling without diffusion is 23-28 μm. Through the arrangement, microscopic fluctuating dots which are densely and uniformly distributed in a staggered manner are formed on the PCB surface, the consistency of the matte black color is realized by the diffuse reflection formed by the uniform dots, the density of the printing ink is effectively ensured, and the uniformity of the color development is ensured.
Further, in the second step, the distance between the adjacent ink drops is 23-28 μm. The circle centers of any three adjacent ink drops form an equilateral triangle. Through this setting for the printing ink drop arranges and sets up evenly, thereby in the optics chromogenic principle, the even arranging of printing ink drop does benefit to the color development uniformity, improves the color development quality.
Further, in step three, UV curing is performed within 1-3 seconds after the ink begins to lay flat. Through this time setting for the printing ink drop reaches certain diffusion tiling, but not thoroughly evenly spread out, forms the microcosmic diffuse reflection surface that the mistake fell, makes the diffuse reflection that even dot formed realize dumb black color uniformity, and the time cooperatees with printing ink drop diffusion rate, guarantees whole product quality.
Further, the wavelength of the UV laser is 360-420 nm. Through this setting, effectively guarantee the degree of solidification to the printing ink drop, improve solidification efficiency.
The invention has the beneficial effects that:
by designing the ink-jet printing method, the problem that the color consistency of the matte black ink is not ideal is solved, the color of the matte black ink with consistency presented by the mini LED main board is realized, the product quality is effectively ensured, and the production yield is improved.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic view of an arrangement structure of ink droplets according to the present invention.
The mark in the figure is: ink droplets 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
To facilitate an understanding of the present invention for those skilled in the art, the present invention will be described in further detail below with reference to specific embodiments and accompanying drawings.
As shown in fig. 1-2, an inkjet printing method for improving color consistency of matte black oil of an LED board according to an embodiment of the present invention includes the following steps:
step one, manufacturing a solder mask layer; manufacturing a solder mask layer on the PCB;
step two, spreading ink drops 1; the welding-proof ink-jet technology is adopted, and the ink drops 1 are arranged in a staggered and uniformly dispersed manner;
semi-curing the ink drop 1; ink is tiled for a certain time, UV laser is adopted to quickly follow up an anti-welding ink-jet device, so that the ink drops 1 are semi-solidified at an accelerated speed, the ink drops 1 are controlled in a proper flowing range, microscopic fluctuation small points with dense, uniform and staggered positions are formed on the surface of a PCB, and diffuse reflection is formed by the uniform small points to realize the consistency of matte black color.
The steps are suitable for ink-jet printing of the small-spacing LED; the distance between two lamp beads of the small-distance LED is less than or equal to 2.5 mm.
According to the invention, the electric appliance insulation can be effectively ensured by manufacturing the solder mask layer, and the smooth operation of the method is ensured. Through also carrying out the semi-solid of printing ink drop 1 at the in-process of carrying out tiling printing ink drop 1 for printing ink reaches certain diffusion tiling, but does not thoroughly spread out on average again, thereby forms the microcosmic diffuse reflection surface of straggling, learns from the optics color development principle, forms the diffuse reflection by even dot and realizes dumb black color uniformity. Through the setting of above-mentioned step, its is easy and simple to handle swift, guarantees that the mini LED mainboard demonstrates the mute black ink color that has the uniformity, effectively guarantees product quality, improves the production yield.
In one embodiment, in the first step, the thickness of the solder mask layer is 20-30 μm. Through this setting, it is good effectively to guarantee electrical insulation, effectively guarantees to realize the smooth and easy security of operation of mute black color uniformity.
In one embodiment, in step two, the ink drops with undiffused diameter of 23-28 μm. Through the arrangement, microscopic fluctuating dots which are densely and uniformly distributed in a staggered manner are formed on the PCB surface, the consistency of the matte black color is realized by the diffuse reflection formed by the uniform dots, the density of the printing ink is effectively ensured, and the uniformity of the color development is ensured.
In one embodiment, in step two, the distance between adjacent ink drops 1 is 23-28 μm. The centers of circles of any three adjacent ink drops 1 form an equilateral triangle. Through this setting for printing ink drop 1 arranges and sets up evenly, thereby in the optics chromogenic principle, the even arrangement of printing ink drop 1 does benefit to the color development uniformity, improves the color development quality.
In one embodiment, in step three, the ink is UV cured within 1-3 seconds after the ink begins to lay flat. Through this time setting for printing ink drop 1 reaches certain diffusion tiling, but not thoroughly evenly spread out, forms the microcosmic diffuse reflection surface that the mistake fell for the diffuse reflection that even dot formed realizes dumb black color uniformity, and the time cooperatees with printing ink drop 1 diffusion rate, guarantees whole product quality.
In one embodiment, the wavelength of the UV laser is 360-420 nm. Through this setting, effectively guarantee the solidification degree to ink drop 1, improve solidification efficiency.
The invention has the beneficial effects that:
by designing the ink-jet printing method, the problem that the color consistency of the matte black ink is not ideal is solved, the color of the matte black ink with consistency presented by the mini LED main board is realized, the product quality is effectively ensured, and the production yield is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein. It should be noted that the technical features not described in detail in the present invention can be implemented by any prior art.
Claims (8)
1. An ink-jet printing method for improving color consistency of matte black oil of an LED board is characterized by comprising the following steps:
step one, manufacturing a solder mask layer; manufacturing a solder mask layer on the PCB;
step two, spreading ink drops; the welding-proof ink-jet technology is adopted, and the ink drops are arranged in a staggered and uniformly dispersed manner;
semi-curing the ink drops; printing ink tiles to a certain time, adopts UV laser to follow up fast with the anti-welding ink jet equipment for the semi-solidification of printing ink droplet is quickened, with printing ink droplet control in a suitable mobility within range, thereby form the microcosmic fluctuation tiny dot that intensive even dislocation is respectively on the PCB face, form the diffuse reflection by even tiny dot and realize dumb black color uniformity.
2. The inkjet printing method for improving color consistency of LED board matte black oil as claimed in claim 1, wherein in the step one, the thickness of the solder mask layer is 20-30 μm.
3. The ink-jet printing method for improving color consistency of LED board matte black oil as claimed in claim 1, wherein in the second step, the ink drops and has a diameter of 23-28 μm without diffusion.
4. The inkjet printing method for improving color consistency of the matte black oil of the LED board as claimed in claim 1, wherein in the second step, the distance between adjacent ink drops is 23-28 μm.
5. The inkjet printing method for improving color consistency of matte black oil of an LED panel according to claim 4, wherein centers of circles of any three adjacent ink drops form an equilateral triangle.
6. The inkjet printing method for improving color consistency of matte black oil of an LED board as claimed in claim 1, wherein in step three, UV curing is performed within 1-3 seconds after the ink begins to tile.
7. The inkjet printing method for improving the color consistency of the LED board matte black oil as claimed in claim 1, wherein the wavelength of the UV laser is 360-420 nm.
8. The inkjet printing method for improving the color consistency of the matte black oil of the LED board as claimed in claim 1, wherein the steps are suitable for inkjet printing of small-pitch LEDs; the distance between two lamp beads of the small-distance LED is less than or equal to 2.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210830369.XA CN115027162B (en) | 2022-07-15 | 2022-07-15 | Inkjet printing method for improving color consistency of matt black oil of LED board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210830369.XA CN115027162B (en) | 2022-07-15 | 2022-07-15 | Inkjet printing method for improving color consistency of matt black oil of LED board |
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| Publication Number | Publication Date |
|---|---|
| CN115027162A true CN115027162A (en) | 2022-09-09 |
| CN115027162B CN115027162B (en) | 2023-11-03 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004279491A (en) * | 2003-03-13 | 2004-10-07 | Konica Minolta Holdings Inc | Method for forming antiglare antireflection layer, antiglare antireflection film and its manufacturing method, display device using the film, and antiglare antireflection processing device |
| CN207340019U (en) * | 2017-09-12 | 2018-05-08 | 硕诺科技（深圳）有限公司 | One kind reduces irreflexive FPC soft boards and cameras with fixed focus module |
| US20180194145A1 (en) * | 2017-01-06 | 2018-07-12 | Mimaki Engineering Co., Ltd. | Printer, printing method, and manufacturing method for decorated object |
| CN108624144A (en) * | 2018-05-10 | 2018-10-09 | 江西景旺精密电路有限公司 | A kind of black matte ink and its preparation and spraying method |
| JP2018202843A (en) * | 2017-06-09 | 2018-12-27 | コニカミノルタ株式会社 | Decorative sheet and inkjet image formation system |
| CN209904290U (en) * | 2019-03-12 | 2020-01-07 | 江苏天之印数码打印材料有限公司 | Color ink-jet printing matte gloss photographic paper |
| CN114058212A (en) * | 2021-11-18 | 2022-02-18 | 惠州市艾比森光电有限公司 | Black matte ink, PCB and preparation method thereof |
-
2022
- 2022-07-15 CN CN202210830369.XA patent/CN115027162B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004279491A (en) * | 2003-03-13 | 2004-10-07 | Konica Minolta Holdings Inc | Method for forming antiglare antireflection layer, antiglare antireflection film and its manufacturing method, display device using the film, and antiglare antireflection processing device |
| US20180194145A1 (en) * | 2017-01-06 | 2018-07-12 | Mimaki Engineering Co., Ltd. | Printer, printing method, and manufacturing method for decorated object |
| JP2018202843A (en) * | 2017-06-09 | 2018-12-27 | コニカミノルタ株式会社 | Decorative sheet and inkjet image formation system |
| CN207340019U (en) * | 2017-09-12 | 2018-05-08 | 硕诺科技（深圳）有限公司 | One kind reduces irreflexive FPC soft boards and cameras with fixed focus module |
| CN108624144A (en) * | 2018-05-10 | 2018-10-09 | 江西景旺精密电路有限公司 | A kind of black matte ink and its preparation and spraying method |
| CN209904290U (en) * | 2019-03-12 | 2020-01-07 | 江苏天之印数码打印材料有限公司 | Color ink-jet printing matte gloss photographic paper |
| CN114058212A (en) * | 2021-11-18 | 2022-02-18 | 惠州市艾比森光电有限公司 | Black matte ink, PCB and preparation method thereof |
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| CN115027162B (en) | 2023-11-03 |
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