CN103358730B - A kind of ink ejecting method of light guide plate, system and light guide plate flat plate ink-jet equipment - Google Patents
A kind of ink ejecting method of light guide plate, system and light guide plate flat plate ink-jet equipment Download PDFInfo
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- CN103358730B CN103358730B CN201310194626.6A CN201310194626A CN103358730B CN 103358730 B CN103358730 B CN 103358730B CN 201310194626 A CN201310194626 A CN 201310194626A CN 103358730 B CN103358730 B CN 103358730B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000003287 optical effect Effects 0.000 claims abstract description 37
- 238000009826 distribution Methods 0.000 claims abstract description 25
- 230000011218 segmentation Effects 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 abstract description 17
- 239000007921 spray Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000000875 corresponding effect Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The invention belongs to light guide plate ink-jet process field, provide a kind of ink ejecting method of light guide plate, system and light guide plate flat plate ink-jet equipment.The method and system combine traditional amplitude control mode and frequency-modulation halftone dot control mode, and light guide plate optical density (OD) distribution map has been carried out layering, the corresponding ink gun of each layer, thus add the randomness that ink droplet distributes on light guide plate, make each nozzle of single ink gun need not spray ink droplet simultaneously, and the adjacent nozzle of adjacent ink ejection head can not spray ink droplet in gray scale same area simultaneously, improve the smooth effect of unit are drop density change, be specially adapted to the air brushing of high gray or high grey scale pattern.Meanwhile, without the need to increasing extra ink gun, having saved financial resources cost and time cost, having improve production efficiency.
Description
Technical field
The invention belongs to light guide plate ink-jet process field, particularly relate to a kind of method, system and the light guide plate flat plate ink-jet equipment that realize the high GTG ink-jet of light guide plate.
Background technology
Well known, in a liquid crystal display, LCDs needs to utilize the uniformly light-emitting of light guide plate in backlight module to be formed an area source, in order to realize the high area source of uniformity, needs to carry out optical design in light guide plate surface.This kind of optical design realizes by various processing procedure, such as, and air brushing processing procedure, serigraphy, ejection formation, laser engraving, imprinting moulding etc.
In air brushing processing procedure, flat plate ink-jet equipment is utilized to complete air brushing to light guide plate surface pattern.Well known, the mode that classic flat-plate ink-jet apparatus realizes GTG has the following two kinds:
One, amplitude control mode.Under this kind of control mode, in unit are, ink droplet number remains unchanged, and in flat plate ink-jet equipment, controller of ink jet head is by regulating the size of each nozzle ejection ink droplet in the ink gun of flat plate ink-jet equipment, reflects different grey scale pattern.
Two, frequency-modulation halftone dot control mode.Under this kind of control mode, droplet size is constant, reflects different grey scale pattern by the density of ink droplet.Relative to amplitude control mode, the pattern definition advantages of higher that this kind of control mode has elimination " moire ", air brushing obtains.
Above-mentioned two kinds control the air brushing that only can realize 16 grades of GTGs, cannot be greater than the high GTG air brushing of 16 grades of GTGs to light guide plate.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 ejection head likely can spray ink droplet when gray scale is identical simultaneously, thus the smooth effect that unit are drop density is changed is poor.
In prior art, drop location can be utilized to improve the smooth effect of light guide plate air brushing.But the resolution ratio due to flat plate ink-jet equipment is only define with single ink gun, that is to say, the resolution ratio that each ink gun is corresponding certain, therefore, level and smooth air brushing is realized to improve pattern resolution, realizing by increasing ink gun, financial resources cost and the time cost of air brushing can be increased like this, reduce production efficiency.
Summary of the invention
The object of the embodiment of the present invention is the ink ejecting method providing a kind of light guide plate, be intended to solve prior art and improve pattern resolution by increasing ink gun, to realize the smooth effect of high GTG air brushing, add the financial resources cost of light guide plate air brushing and time cost, problem that production efficiency is low.
The embodiment of the present invention is achieved in that a kind of ink ejecting method of light guide plate, and described method comprises:
By optical analog, generate light guide plate optical density (OD) distribution map;
Described light guide plate optical density (OD) distribution map is divided at least two layer, and read and store positional information and the density information of each site in each layer, the number of described layer is identical with the number of ink gun;
According to positional information and the density information of each site in each layer stored, control the ink ejecting state of each nozzle in corresponding ink gun;
Each described layer and described ink gun association store, each described layer and each described ink gun one_to_one corresponding respectively.
Another object of the embodiment of the present invention is the ink-jet system providing a kind of light guide plate, and described system comprises:
Generation module, for by optical analog, generates light guide plate optical density (OD) distribution map;
Segmentation module, is divided at least two layer for the described light guide plate optical density (OD) distribution map generated by described generation module, and read and store positional information and the density information of each site in each layer, the number of described layer is identical with the number of ink gun;
Control module, for according to the positional information of each site and density information in each layer stored, controls the ink ejecting state of each nozzle in corresponding ink gun;
Each described layer and described ink gun association store, each described layer and each described ink gun one_to_one corresponding respectively.
Another object of the embodiment of the present invention is to provide a kind of light guide plate flat plate ink-jet equipment, the stepper motor comprising at least two ink guns, drive described ink gun to advance, and described equipment also comprises:
Generation module, for by optical analog, generates light guide plate optical density (OD) distribution map;
Segmentation module, is divided at least two layer for the light guide plate optical density (OD) distribution map generated by described generation module, and read and store positional information and the density information of each site in each layer, the number of described layer is identical with the number of described ink gun;
Control module, for according to the positional information of each site and density information in each layer stored, control the ink ejecting state of each nozzle in corresponding ink gun, described control module connects described stepper motor;
Each described layer and described ink gun association store, each described layer and each described ink gun one_to_one corresponding respectively.
The ink ejecting method of the light guide plate that the embodiment of the present invention provides and system combine traditional amplitude control mode and frequency-modulation halftone dot control mode, and light guide plate optical density (OD) distribution map has been carried out layering, the corresponding ink gun of each layer, thus add the randomness that ink droplet distributes on light guide plate, make each nozzle of single ink gun need not spray ink droplet simultaneously, and the adjacent nozzle of adjacent ink ejection head can not spray ink droplet in gray scale same area simultaneously, improve the smooth effect of unit are drop density change, be specially adapted to the air brushing of high gray or high grey scale pattern.Meanwhile, without the need to increasing extra ink gun, having saved financial resources cost and time cost, having improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the flow chart of the ink ejecting method of the light guide plate that the embodiment of the present invention provides;
Fig. 2 is the X-axis density curve schematic diagram of light guide plate;
Fig. 3 is the Y-axis density curve schematic diagram of light guide plate;
Fig. 4 is the light guide plate optical density (OD) distribution map of the embodiment of the present invention;
Fig. 5 is the ink-jet schematic diagram of the ink ejecting method of the light guide plate that the embodiment of the present invention provides;
Fig. 6 is the structure chart of the ink-jet system of the light guide plate that the embodiment of the present invention provides.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, 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, be not intended to limit the present invention.
For prior art Problems existing, the ink ejecting method of the light guide plate that the embodiment of the present invention provides combines traditional amplitude control mode and frequency-modulation halftone dot control mode, and light guide plate optical density (OD) distribution map has been carried out layering, the corresponding ink gun of each layer.
Fig. 1 shows the flow process of the ink ejecting method of the light guide plate that the embodiment of the present invention provides.Comprise the following steps:
Step S1: by optical analog, generates light guide plate optical density (OD) distribution map.
In the embodiment of the present invention, light guide plate optical density (OD) distribution map is that the X-axis density curve of light guide plate and Y-axis density curve draw best density fonction through optical analog.Suppose that the X-axis density curve of light guide plate is F (X), the Y-axis density curve of light guide plate is F (Y), light guide plate optical density (OD) distribution function is D (Z), then there is D (Z)=F (X) * F (Y), wherein, as shown in Figure 2, as shown in Figure 3, and X-axis density curve F (X) and Y-axis density curve F (Y) meets Y-axis density curve F (Y) X-axis density curve F (X) 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)
As shown in Figure 4, this light guide plate optical density (OD) distribution map characterizes on printing pattern needed for light guide plate the light guide plate optical density (OD) distribution map then obtained, the distributing position of ink droplet and droplet size.
Step S2: light guide plate optical density (OD) distribution map is divided at least two layer, read and store positional information and the density information of each site in each layer, the number of layer is identical with the number of ink gun.
In the embodiment of the present invention, each layer can carry out association store with ink gun, then each layer and each ink gun one_to_one corresponding respectively, and the spraying width of each layer can be equal with effective spraying width of corresponding ink gun further.Certainly, each layer also can be uncorrelated with ink gun, then, in follow-up air brushing process, randomly draw layer corresponding with an ink gun.
Step S3: according to positional information and the density information of each site in each layer stored, control the ink ejecting state of each nozzle in corresponding ink gun.
In the embodiment of the present invention, if positional information refers to site (i.e. ink droplet) coordinate information on light guide plate, density information refers to the area shared by site.Ink ejecting state refers to that whether and the size of ejection ink droplet nozzle ink jet.
The ink ejecting method of the light guide plate that the embodiment of the present invention provides combines traditional amplitude control mode and frequency-modulation halftone dot control mode, and light guide plate optical density (OD) distribution map has been carried out layering, the corresponding ink gun of each layer, thus the randomness adding that ink droplet distributes on light guide plate.As shown in Figure 5, according to positional information and the density information of site each in each layer, by control step motor, each ink gun is driven to advance, and control the ink ejecting state of each nozzle in each ink gun, thus make each nozzle of single ink gun need not spray ink droplet simultaneously, and the adjacent nozzle of adjacent ink ejection head can not spray ink droplet in gray scale same area S simultaneously, improve the smooth effect of unit are drop density change, be specially adapted to the air brushing of high gray or high grey scale pattern.Meanwhile, without the need to increasing extra ink gun, having saved financial resources cost and time cost, having improve production efficiency.
Fig. 6 shows the structure of the ink-jet system of the light guide plate that the embodiment of the present invention provides.Comprise: generation module 11, for passing through optical analog, generate light guide plate optical density (OD) distribution map, this generation step as detailed above, is not repeated herein; Segmentation module 12, is divided at least two layer for the light guide plate optical density (OD) distribution map generated by generation module 11, and read and store positional information and the density information of each site in each layer, the number of layer is identical with the number of ink gun; Control module 13, for according to the positional information of each site and density information in each layer stored, controls the ink ejecting state of each nozzle in corresponding ink gun.
The embodiment of the present invention additionally provides a kind of light guide plate flat plate ink-jet equipment, the stepper motor comprise at least two ink guns, driving ink gun to advance and the ink-jet system of light guide plate as above.Wherein, the control module 13 in the ink-jet system of light guide plate is integrated in controller of ink jet head, in order to Driving Stepping Motor work; Wherein, each ink gun comprises multiple nozzle.
The ink ejecting method of the light guide plate that the embodiment of the present invention provides and system combine traditional amplitude control mode and frequency-modulation halftone dot control mode, and light guide plate optical density (OD) distribution map has been carried out layering, the corresponding ink gun of each layer, thus add the randomness that ink droplet distributes on light guide plate, make each nozzle of single ink gun need not spray ink droplet simultaneously, and the adjacent nozzle of adjacent ink ejection head can not spray ink droplet in gray scale same area S simultaneously, improve the smooth effect of unit are drop density change, be specially adapted to the air brushing of high gray or high grey scale pattern.Meanwhile, without the need to increasing extra ink gun, having saved financial resources cost and time cost, having improve production efficiency.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is that the hardware that can control to be correlated with by program completes, described program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. an ink ejecting method for light guide plate, is characterized in that, described method comprises:
By optical analog, generate light guide plate optical density (OD) distribution map;
Described light guide plate optical density (OD) distribution map is divided at least two layer, and read and store positional information and the density information of each site in each layer, the number of described layer is identical with the number of ink gun;
According to positional information and the density information of each site in each layer stored, control the ink ejecting state of each nozzle in corresponding ink gun;
Each described layer and described ink gun association store, each described layer and each described ink gun one_to_one corresponding respectively.
2. an ink-jet system for light guide plate, is characterized in that, described system comprises:
Generation module, for by optical analog, generates light guide plate optical density (OD) distribution map;
Segmentation module, is divided at least two layer for the described light guide plate optical density (OD) distribution map generated by described generation module, and read and store positional information and the density information of each site in each layer, the number of described layer is identical with the number of ink gun;
Control module, for according to the positional information of each site and density information in each layer stored, controls the ink ejecting state of each nozzle in corresponding ink gun;
Each described layer and described ink gun association store, each described layer and each described ink gun one_to_one corresponding respectively.
3. a light guide plate flat plate ink-jet equipment, the stepper motor comprising at least two ink guns, drive described ink gun to advance, is characterized in that, described equipment also comprises:
Generation module, for by optical analog, generates light guide plate optical density (OD) distribution map;
Segmentation module, is divided at least two layer for the light guide plate optical density (OD) distribution map generated by described generation module, and read and store positional information and the density information of each site in each layer, the number of described layer is identical with the number of described ink gun;
Control module, for according to the positional information of each site and density information in each layer stored, control the ink ejecting state of each nozzle in corresponding ink gun, described control module connects described stepper motor;
Each described layer and described ink gun association store, each described layer and each described ink gun one_to_one corresponding respectively.
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| 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 |
Citations (3)
| 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 |
| 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 |
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| KR100437799B1 (en) * | 2002-04-08 | 2004-06-30 | 엘지전자 주식회사 | manufacture align ink-jet for make panel display |
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Patent Citations (3)
| 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 |
| 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 |
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