CN103358730A - Light guide plate inkjet method and system, and flatbed inkjet equipment for light guide plate - Google Patents
Light guide plate inkjet method and system, and flatbed inkjet equipment for light guide plate Download PDFInfo
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- CN103358730A CN103358730A CN2013101946266A CN201310194626A CN103358730A CN 103358730 A CN103358730 A CN 103358730A CN 2013101946266 A CN2013101946266 A CN 2013101946266A CN 201310194626 A CN201310194626 A CN 201310194626A CN 103358730 A CN103358730 A CN 103358730A
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Abstract
The invention belongs to the field of light guide plate inkjet processing and provides a light guide plate inkjet method, a light guide plate inkjet system and flatbed inkjet equipment for a light guide plate. A traditional amplitude modulation dot control mode and a frequency modulation dot control mode are combined, an optical density distribution pattern of the light guide plate is layered, and each layer corresponds to an inkjet head, thereby enhancing the distribution randomness of ink drops on the light guide plate, so that each nozzle of a single inkjet head is not required to jet ink drops at the same time, and adjacent nozzles of adjacent inkjet heads in areas with same gray levels do not jet ink drops at the same time. Therefore the smooth effect of change of ink drop density per unit area is improved. The method and the system are especially suitable for inkjet of high gray scale patterns or extremely high gray-scale patterns. No additional inkjet head is required to be used, the resource cost and time cost are lowered, and the production efficiency is improved.
Description
Technical field
The invention belongs to LGP ink-jet process field, relate in particular to a kind of method, system and LGP flat plate ink-jet equipment of realizing the high GTG ink-jet of LGP.
Background technology
Known ground, in liquid crystal display, LCDs need to utilize that the uniformly light-emitting of LGP forms an area source in the backlight module, for the area source of realizing that uniformity is high, need to carry out optical design on the LGP surface.This kind optical design can realize by various processing procedures, for example, and air brushing processing procedure, serigraphy, ejection formation, laser engraving, imprinting moulding etc.
In the air brushing processing procedure, utilize flat plate ink-jet equipment to finish air brushing to the LGP picture on surface.Known ground, classic flat-plate ink-jet apparatus realize that the mode of GTG has following two kinds:
One, amplitude control mode.Under this kind control mode, the ink droplet number remains unchanged in the unit are, and controller of ink jet head reflects different grey scale pattern by the size of each nozzle ejection ink droplet in the ink gun of regulating flat plate ink-jet equipment in the flat plate ink-jet equipment.
Two, frequency-modulation halftone dot control mode.Under this kind control mode, droplet size is constant, and the density by ink droplet reflects different grey scale pattern.With respect to the amplitude control mode, this kind control mode has the clear patterns degree advantages of higher that elimination " moire ", air brushing obtain.
Above-mentioned two kinds of controls only can realize the air brushing of 16 grades of GTGs, can't carry out high GTG air brushing greater than 16 grades of GTGs to LGP.When carrying out high GTG air brushing, each nozzle of single ink gun can spray ink droplet simultaneously, and the adjacent nozzle of adjacent ink gun might spray ink droplet simultaneously when gray scale is identical, thereby so that the smooth effect that the unit are drop density changes is poor.
In the prior art, can utilize drop location to improve the smooth effect of LGP air brushing.But because the resolution ratio of flat plate ink-jet equipment only is to define with single ink gun, that is to say, the resolution ratio that each ink gun is corresponding certain, therefore, realize level and smooth air brushing if improve pattern resolution, can realize by increasing ink gun, can increase like this financial resources cost and the time cost of air brushing, reduce production efficiency.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of ink ejecting method of LGP, be intended to solve prior art and improve pattern resolution by increasing ink gun, to realize the smooth effect of high GTG air brushing, the financial resources cost of LGP air brushing and time cost, problem that production efficiency is low have been increased.
The embodiment of the invention is achieved in that a kind of ink ejecting method of LGP, and described method comprises:
By optical analog, generate LGP optical density (OD) distribution map;
Described LGP optical density (OD) distribution map is divided at least two figure layers, reads and store positional information and the density information of each site in each figure layer, the number of described figure layer is identical with the number of ink gun;
According to positional information and the density information of each site in each figure layer of storage, the ink-jet state of each nozzle in the ink gun of control correspondence.
Another purpose of the embodiment of the invention is to provide a kind of ink-jet system of LGP, and described system comprises:
Generation module is used for by optical analog, generates LGP optical density (OD) distribution map;
Cut apart module, be used for the described LGP optical density (OD) distribution map that described generation module generates is divided at least two figure layers, read and store positional information and the density information of each site in each figure layer, the number of described figure layer is identical with the number of ink gun;
Control module is used for positional information and density information according to each each site of figure layer of storage, the ink-jet state of each nozzle in the ink gun of control correspondence.
Another purpose of the embodiment of the invention is to provide a kind of LGP flat plate ink-jet equipment, comprises at least two ink guns, drives the stepper motor that described ink gun is advanced, and described equipment also comprises:
Generation module is used for by optical analog, generates LGP optical density (OD) distribution map;
Cut apart module, be used for the LGP optical density (OD) distribution map that described generation module generates is divided at least two figure layers, read and store positional information and the density information of each site in each figure layer, the number of described figure layer is identical with the number of described ink gun;
Control module is used for positional information and density information according to each each site of figure layer of storage, the ink-jet state of each nozzle in the ink gun of control correspondence, and described control module connects described stepper motor.
The ink ejecting method of the LGP that the embodiment of the invention provides and system combine traditional amplitude control mode and frequency-modulation halftone dot control mode, and LGP optical density (OD) distribution map carried out layering, the corresponding ink gun of each figure layer, thereby increased the randomness that ink droplet distributes at LGP, so that each nozzle of single ink gun needn't spray ink droplet simultaneously, and the adjacent nozzle of adjacent ink gun can not spray ink droplet simultaneously in the gray scale same area, improve the smooth effect that the unit are drop density changes, be specially adapted to the air brushing of high gray or high grey scale pattern.Simultaneously, need not increases extra ink gun, has saved financial resources cost and time cost, has improved production efficiency.
Description of drawings
Fig. 1 is the flow chart of the ink ejecting method of the LGP that provides of the embodiment of the invention;
Fig. 2 is the X-axis density curve schematic diagram of LGP;
Fig. 3 is the Y-axis density curve schematic diagram of LGP;
Fig. 4 is the LGP optical density (OD) distribution map of the embodiment of the invention;
Fig. 5 is the ink-jet schematic diagram of the ink ejecting method of the LGP that provides of the embodiment of the invention;
Fig. 6 is the structure chart of the ink-jet system of the LGP that provides of the embodiment of the invention.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Problem for the prior art existence, the ink ejecting method of the LGP that the embodiment of the invention provides combines traditional amplitude control mode and frequency-modulation halftone dot control mode, and LGP optical density (OD) distribution map carried out layering, the corresponding ink gun of each figure layer.
Fig. 1 shows the flow process of the ink ejecting method of the LGP that the embodiment of the invention provides.May further comprise the steps:
Step S1: by optical analog, generate LGP optical density (OD) distribution map.
In the embodiment of the invention, LGP optical density (OD) distribution map is that X-axis density curve and the Y-axis density curve of LGP draws best density fonction through optical analog.The X-axis density curve of supposing LGP is F (X), the Y-axis density curve of LGP is F (Y), LGP optical density (OD) distribution function is D (Z), D (Z)=F (X) * F (Y) is then arranged, wherein, X-axis density curve F (X) as shown in Figure 2, Y-axis density curve F (Y) as shown in Figure 3, and X-axis density curve F (X) and Y-axis density curve F (Y) satisfy respectively:
F(X)=A
0exp
-10(X
6)+A
1exp
-10(X
5)+A
2exp
-10(X
4)+A
3exp
-10(X
3)+A
4exp
-10(X
2)+A
5exp
-10(X
2)+A
6exp
-10(X
1)+A
7exp
-10(X
0)
F(Y)=B
0exp
-10(Y
6)+B
1exp
-10(Y
5)+B
2exp
-10(Y
4)+B
3exp
-10(Y
3)+B
4exp
-10(Y
2)+B
5exp
-10(Y
2)+B
6exp
-10(Y
1)+B
7exp
-10(Y
0)
The LGP optical density (OD) distribution map that then obtains as shown in Figure 4, this LGP optical density (OD) distribution map has characterized on the required printing pattern of LGP, the distributing position of ink droplet and droplet size.
Step S2: LGP optical density (OD) distribution map is divided at least two figure layers, reads and store positional information and the density information of each site in each figure layer, the number of figure layer is identical with the number of ink gun.
In the embodiment of the invention, each figure layer can carry out association store with ink gun, and then each figure layer is corresponding one by one respectively with each ink gun, and the spraying width of each figure layer can equate with effective spraying width of corresponding ink gun further.Certainly, each figure layer also can be uncorrelated with ink gun, then in follow-up air brushing process, randomly draws the figure layer corresponding with an ink gun.
Step S3: according to positional information and the density information of each site in each figure layer of storage, the ink-jet state of each nozzle in the ink gun of control correspondence.
In the embodiment of the invention, if positional information refers to the coordinate information of site (being ink droplet) on LGP, density information refers to the area that the site is shared.Whether the ink-jet state refers to nozzle ink jet and the size of ejection ink droplet.
The ink ejecting method of the LGP that the embodiment of the invention provides combines traditional amplitude control mode and frequency-modulation halftone dot control mode, and LGP optical density (OD) distribution map carried out layering, the corresponding ink gun of each figure layer, thus the randomness that ink droplet distributes at LGP increased.As shown in Figure 5, positional information and density information according to each site in each figure layer, by the control step motor, driving each ink gun advances, and control the ink-jet state of each nozzle in each ink gun, thereby so that each nozzle of single ink gun needn't spray ink droplet simultaneously, and the adjacent nozzle of adjacent ink gun can not spray ink droplet simultaneously in gray scale same area S, improve the smooth effect that the unit are drop density changes, be specially adapted to the air brushing of high gray or high grey scale pattern.Simultaneously, need not increases extra ink gun, has saved financial resources cost and time cost, has improved production efficiency.
Fig. 6 shows the structure of the ink-jet system of the LGP that the embodiment of the invention provides.Comprise: generation module 11, be used for by optical analog, generate LGP optical density (OD) distribution map, this generates step specifically as mentioned above, is not repeated herein; Cut apart module 12, be used for the LGP optical density (OD) distribution map that generation module 11 generates is divided at least two figure layers, read and store positional information and the density information of each site in each figure layer, the number of figure layer is identical with the number of ink gun; Control module 13 is used for positional information and density information according to each each site of figure layer of storage, the ink-jet state of each nozzle in the ink gun of control correspondence.
The embodiment of the invention also provides a kind of LGP flat plate ink-jet equipment, comprises at least two ink guns, drives stepper motor that ink gun advances and the ink-jet system of aforesaid LGP.Wherein, the control module 13 in the ink-jet system of LGP is integrated in the controller of ink jet head, in order to Driving Stepping Motor work; Wherein, each ink gun comprises a plurality of nozzles.
The ink ejecting method of the LGP that the embodiment of the invention provides and system combine traditional amplitude control mode and frequency-modulation halftone dot control mode, and LGP optical density (OD) distribution map carried out layering, the corresponding ink gun of each figure layer, thereby increased the randomness that ink droplet distributes at LGP, so that each nozzle of single ink gun needn't spray ink droplet simultaneously, and the adjacent nozzle of adjacent ink gun can not spray ink droplet simultaneously in gray scale same area S, improve the smooth effect that the unit are drop density changes, be specially adapted to the air brushing of high gray or high grey scale pattern.Simultaneously, need not increases extra ink gun, has saved financial resources cost and time cost, has improved production efficiency.
One of ordinary skill in the art will appreciate that all or part of step that realizes in above-described embodiment method is can control relevant hardware by program to finish, described program can be in being stored in a computer read/write memory medium, described storage medium is such as ROM/RAM, disk, CD etc.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the ink ejecting method of a LGP is characterized in that, described method comprises:
By optical analog, generate LGP optical density (OD) distribution map;
Described LGP optical density (OD) distribution map is divided at least two figure layers, reads and store positional information and the density information of each site in each figure layer, the number of described figure layer is identical with the number of ink gun;
According to positional information and the density information of each site in each figure layer of storage, the ink-jet state of each nozzle in the ink gun of control correspondence.
2. the ink ejecting method of LGP as claimed in claim 1 is characterized in that, each described figure layer and described ink gun association store, and each described figure layer is corresponding one by one respectively with each described ink gun.
3. the ink-jet system of a LGP is characterized in that, described system comprises:
Generation module is used for by optical analog, generates LGP optical density (OD) distribution map;
Cut apart module, be used for the described LGP optical density (OD) distribution map that described generation module generates is divided at least two figure layers, read and store positional information and the density information of each site in each figure layer, the number of described figure layer is identical with the number of ink gun;
Control module is used for positional information and density information according to each each site of figure layer of storage, the ink-jet state of each nozzle in the ink gun of control correspondence.
4. the ink-jet system of LGP as claimed in claim 3 is characterized in that, each described figure layer and described ink gun association store, and each described figure layer is corresponding one by one respectively with each described ink gun.
5. a LGP flat plate ink-jet equipment comprises at least two ink guns, drives the stepper motor that described ink gun is advanced, and it is characterized in that, described equipment also comprises:
Generation module is used for by optical analog, generates LGP optical density (OD) distribution map;
Cut apart module, be used for the LGP optical density (OD) distribution map that described generation module generates is divided at least two figure layers, read and store positional information and the density information of each site in each figure layer, the number of described figure layer is identical with the number of described ink gun;
Control module is used for positional information and density information according to each each site of figure layer of storage, the ink-jet state of each nozzle in the ink gun of control correspondence, and described control module connects described stepper motor.
6. LGP flat plate ink-jet equipment as claimed in claim 5 is characterized in that, each described figure layer and described ink gun association store, and each described figure layer is corresponding one by one respectively with each described ink gun.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698527A (en) * | 2015-01-26 | 2015-06-10 | 深圳市天诺通光电科技有限公司 | Method for preparing microarray patterns on PMMA (polymethyl methacrylate) light guide plate |
Citations (4)
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|---|---|---|---|---|
| EP0551967A2 (en) * | 1987-10-30 | 1993-07-21 | Linx Printing Technologies Plc | Ink jet printer with drop quality control |
| US20040252153A1 (en) * | 2002-04-08 | 2004-12-16 | Lg Electronics, Inc. | Device and method for fabricating display panel having ink-jet printing applied thereto |
| CN102180023A (en) * | 2009-12-11 | 2011-09-14 | 海德堡印刷机械股份公司 | Multilevel printing process using a raster bitmap and assignment method for multilevel screens |
| CN102582246A (en) * | 2011-12-20 | 2012-07-18 | 南京林业大学 | Ultraviolet (UV) digital jet printing manufacturing method of plate-type components of floor boards and furniture |
-
2013
- 2013-05-23 CN CN201310194626.6A patent/CN103358730B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0551967A2 (en) * | 1987-10-30 | 1993-07-21 | Linx Printing Technologies Plc | Ink jet printer with drop quality control |
| US20040252153A1 (en) * | 2002-04-08 | 2004-12-16 | Lg Electronics, Inc. | Device and method for fabricating display panel having ink-jet printing applied thereto |
| CN102180023A (en) * | 2009-12-11 | 2011-09-14 | 海德堡印刷机械股份公司 | Multilevel printing process using a raster bitmap and assignment method for multilevel screens |
| CN102582246A (en) * | 2011-12-20 | 2012-07-18 | 南京林业大学 | Ultraviolet (UV) digital jet printing manufacturing method of plate-type components of floor boards and furniture |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698527A (en) * | 2015-01-26 | 2015-06-10 | 深圳市天诺通光电科技有限公司 | Method for preparing microarray patterns on PMMA (polymethyl methacrylate) light guide plate |
| CN104698527B (en) * | 2015-01-26 | 2018-01-26 | 深圳市天诺通光电科技有限公司 | A kind of method that microarray pattern is prepared on PMMA light guide plates |
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