CN101590727B - Method for jetting colorful ink - Google Patents
Method for jetting colorful ink Download PDFInfo
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- CN101590727B CN101590727B CN2009101410549A CN200910141054A CN101590727B CN 101590727 B CN101590727 B CN 101590727B CN 2009101410549 A CN2009101410549 A CN 2009101410549A CN 200910141054 A CN200910141054 A CN 200910141054A CN 101590727 B CN101590727 B CN 101590727B
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Abstract
The invention provides a method for jetting colorful ink. The method comprises the following steps: determining an initial voltage value of an orifice and a predetermined jetting amount of the initial voltage value corresponding to the orifice; determining a maximum adjusting voltage value of the orifice and a permissible error value of the maximum adjusting voltage value corresponding to the predetermined jetting amount; superposing the initial voltage value and the adjusting voltage value to obtain a jet voltage, wherein the adjusting voltage value can be randomly selected from zero to the maximum adjusting voltage value; and spraying the colorful ink by the orifice into a secondary pixel unit in a pixel unit through a jetting voltage. The method for jetting the colorful ink can randomly adjust the jetting voltage of the orifice or randomly adjust the dripping distance of colorful ink droplet strings to scatter differences of the size of droplets of the colorful ink and dripping positions so as to solve the problem of deficiency of a colored filter caused by the differences of a specific orifice.
Description
The application is that application number is the dividing an application for the application for a patent for invention of " injection method of color inks " that 200810109314.X, the applying date be on May 28th, 2008, denomination of invention.
Technical field
The present invention relates to the preparation method of a kind of colored filter (color filter), and be particularly related to a kind of injection method that is applied to the color inks in the colored filter.
Background technology
LCD has that high image quality, volume are little, in light weight, low voltage drive, low consumpting power and advantages of wide application range; So be widely used in Portable TV, mobile phone, shot with video-corder projector, in consumer electronics such as laptop, desktop display and projection TV or the computer product, become the main flow of display.
Colored filter (color filter) is a considerable member in the LCD, and its basic structure is by glass substrate (glass substrate), black matrix" (black matrix), color layer (color layer), protective layer (over coat) and indium tin oxide (indium tin oxide; ITO) conducting film is formed.The normal ink-jet method of using is made color layer in the prior art; Because spray orifice multidimensional when ink-jet is held the fixed voltage parameter and is done and shoot out; Drop size between different spray orifices or drop drop point will be kept the fixing suitable difficulty that then has; If the fixing less than normal or malposition of the drop of a spray orifice ejection is wherein arranged, then can cause these fixing sub-pixel colors difference to some extent, and then influence the quality of colored filter and the display quality of panel.
With reference to Fig. 1, it is the sketch map that shows the colored filter with defective.Include a plurality of pixel cells 110 in the colored filter 100, and include pixel cell 112,114,116 in each pixel cell 110 a plurality of times.For example, inferior pixel cell 112,114,116 can be represented red (R), green (G), blue (B) three kinds of colors respectively, can use ink-jet method to be filled with corresponding chromatic photoresist ink in the inferior pixel cell 112,114,116.As shown in the figure; To fill time pixel cell 112 is example; When the drop that is sprayed as spray orifice 150c is less than normal; The color inks quantity not sufficient that the inferior pixel cell 112c of permutation is inserted, fixing row or the identical lighter trace of ordered series of numbers of meeting thereby generation, and influence the quality of colored filter and the display quality of panel.
Summary of the invention
Because the problems referred to above that prior art met with; The present invention provides a kind of injection method of color inks; Produce fixing row or the identical lighter or darker trace of ordered series of numbers in order to the error of avoiding colored filter Yin Teding spray orifice, the quality that causes colored filter and panel to show produces the situation of defective.
According to the present invention's one preferred embodiment, a kind of injection method of color inks is proposed, comprise: determine an initial magnitude of voltage of a spray orifice, the starting voltage value is corresponding to a predetermined jetting amount of spray orifice; Then, a maximum adjustment magnitude of voltage of decision spray orifice, maximum adjustment magnitude of voltage can be corresponding to an allowable error value of predetermined jetting amount; Next, a stack starting voltage value and an adjustment magnitude of voltage shoot out voltage to obtain one, wherein adjust big I picked at random between zero extremely maximum adjustment magnitude of voltage of magnitude of voltage; And spray orifice is to shoot out the inferior pixel cell in voltage ejection color inks to a pixel cell.The allowable error value can be positive and negative 2% of predetermined jetting amount.
The injection method of color inks of the present invention can comprise in addition to be adjusted magnitude of voltage with maximum and is divided into a plurality of five equilibriums, big I picked at random in these five equilibriums of adjustment magnitude of voltage; For example, maximum adjustment magnitude of voltage can be divided into 11 to 21 five equilibriums.Pixel cell can be the pixel cell of a colored filter, and color inks can comprise chromatic photoresist.
Another program of the present invention is a kind of injection method of color inks, is applied in time pixel cell, and this method comprises: determine a predetermined sides between one first frame of a color inks clusters of droplets and inferior pixel cell apart from value; Determine a variation value at random, the variation value preferably is apart from 1/5th of value less than predetermined sides; The stack predetermined sides is apart from value and variation value, to obtain one first back gauge value; And one spray orifice from first frame, pass through after the first back gauge value, begin to shoot out color inks.After spray orifice shoots out color inks one and shoots out distance, stop to shoot out color inks, to obtain the color inks clusters of droplets, wherein the color inks clusters of droplets is one second back gauge value with the spacing of one second frame of time pixel cell.The first back gauge value and the second back gauge value sum preferably are the twice of predetermined sides apart from value.The first back gauge value can be predetermined sides and adds the variation value apart from value, and the second back gauge value can be predetermined sides and deducts the variation value apart from value.Perhaps, the first back gauge value can be predetermined sides and deducts the variation value apart from value, and the second back gauge value can be predetermined sides and adds the variation value apart from value.
Another program of the present invention is a kind of injection method of color inks, is applied to comprise in time pixel cell: the predetermined sides between first frame of decision color inks clusters of droplets and time pixel cell is apart from value; Determine a predetermined jetting zero-time of color inks clusters of droplets then, next determine a variation value at random, this variation value is corresponding to the allowable error value of predetermined sides apart from value; And determine a time difference at random; Stack time difference and predetermined jetting zero-time are shootd out the time to obtain one first, then; Spray orifice begins to shoot out color inks from first frame in first time of shooing out.With the translational speed of variation value, can converse spray orifice and move the needed traveling time of variation value distance divided by spray orifice.After traveling time is divided into a plurality of equal portions, select one at random therein as the time difference.Determine the step of a variation value to comprise at random and determine that a maximum variation value, maximum variation value preferably are that predetermined sides is apart from 1/5th of value.Cutting apart maximum variation value is a plurality of five equilibriums, and the size of variation value is a picked at random in a plurality of five equilibriums.Maximum variation value is preferably for being divided into 11 to 21 five equilibriums.
The injection method of color inks of the present invention can be through adjusting shooing out voltage, adjusting the drippage spacing of color inks clusters of droplets or adjust time of the drippage of color inks clusters of droplets at random at random of spray orifice at random; The drop size of color inks is dissipated with the difference branch that drips the position, cause the problem of the defective of colored filter with the difference that solves the Yin Teding spray orifice.
Description of drawings
Fig. 1 is the sketch map that shows colored filter one embodiment with defective.
Fig. 2 is the flow chart that shows injection method one preferred embodiment of color inks of the present invention.
Fig. 3 shows that the injection method of the color inks among Fig. 2 is applied to the enforcement sketch map of colored filter.
Fig. 4 is the sketch map that shows another embodiment of colored filter with defective.
Fig. 5 shows that another preferred embodiment of injection method of color inks of the present invention is applied in the enforcement sketch map of colored filter.
Fig. 6 is the flow chart that shows another preferred embodiment of injection method of color inks of the present invention.
Wherein, description of reference numerals is following:
100: colored filter 110: pixel cell
112,112c, 114,116: inferior pixel 150c: spray orifice
312: inferior pixel cell 350,350a, 350b, 350c, 350d,
400: colored filter 350e: spray orifice
450c: spray orifice 460: color inks clusters of droplets
500: colored filter 512,512a, 512b, 514,516: inferior
520: the first frame pixel cells
560: color inks clusters of droplets 610～650: step
H1, h1 ': predetermined sides is apart from being worth h2, h2 ': the variation value
H3, h3 ': the first back gauge value h4, h4 ': the second back gauge value
The specific embodiment
Below will and specify spirit of the present invention clearly will be described with accompanying drawing; Those of ordinary skill under any the present invention in the technical field is after understanding preferred embodiment of the present invention; When can be by the technology of teachings of the present invention; Change and modification, it does not break away from spirit of the present invention and scope.
Mostly the voltage that shoots out of color inks spray orifice of the prior art is to keep fixing, and the jetting amount that spray orifice sprayed is then with to shoot out voltage relevant.Make the drop that shoots out of all spray orifices all keep onesizely, except that operational difficulty was arranged, along with increasing service time, the difference between indivedual spray orifices also manifested thereupon.If wherein there is the drop of specific spray orifice less, can make that then the clusters of droplets of these row is thin partially, have influence on the quality of colored filter.Therefore, the present invention just proposes a kind of injection method that is applied to the color inks of colored filter, shoots out the situation that inequality causes colored filter generation defective in order to minimizing because of drop.
With reference to Fig. 2, it shows the flow chart of injection method one preferred embodiment of color inks of the present invention.The injection method of color inks starts from the starting voltage value (step 210) of decision spray orifice, and this starting voltage value is the predetermined jetting amount corresponding to spray orifice.Then, determine the maximum adjustment magnitude of voltage (step 220) of this spray orifice, this maximum adjustment magnitude of voltage is the allowable error value corresponding to predetermined jetting amount.Then, stack starting voltage value and adjustment magnitude of voltage are to obtain shooing out voltage (step 230).The big I of adjustment magnitude of voltage is adjusted picked at random between the magnitude of voltage zero to maximum.In the step 240, spray orifice can be with the inferior pixel cell (sub-pixel) in voltage ejection color inks to the pixel cell (pixel) that shoots out that obtains in the step 230.
With reference to Fig. 3, it is to show that the injection method of the color inks among Fig. 2 is applied to the enforcement sketch map of colored filter simultaneously.By the injection method that uses the color inks described in the present embodiment; Each spray orifice 350 is when shooing out each time; But repeating step 230 is to step 240, with determine indivedual spray orifices 350 each time shoot out voltage, make spray orifice 350 with the different voltage ejection color inks that shoot out.
In proper order pixel cell 312 be an example, because spray orifice 350 can be chosen the different voltage that shoots out, to spray the big or small drops of difference at random spraying color inks each time when filling up different inferior pixel cell 312.Thus, the difference of the drop size that each spray orifice sprayed also can be divided to dissipate randomly, and difference is concentrated on the specific spray orifice 350.
In the step 210; When the logic of design picked at random adjustment magnitude of voltage; The starting voltage benchmark that preferably is each spray orifice 350 is all incomplete same; And this starting voltage value is controlled the predetermined jetting amount corresponding to spray orifice, and the difference between the predetermined jetting amount of spray orifice 350 is preferably for being controlled within positive and negative 2%.For example; The initial magnitude of voltage that shoots out of spray orifice 350a can be corresponding to 1.010 times predetermined jetting amount; The initial magnitude of voltage that shoots out of spray orifice 350b can be corresponding to 1.005 times predetermined jetting amount; The initial magnitude of voltage that shoots out of spray orifice 350c can be corresponding to 1.000 times predetermined jetting amount, and the starting voltage value of spray orifice 350d can be corresponding to 0.995 times predetermined jetting amount, and the starting voltage value of spray orifice 350e can be corresponding to 0.990 times predetermined jetting amount.Thus, the Changing Pattern between indivedual spray orifices 350 of can staggering is to disperse the difference of drop size further.
Then, resulting adjustment magnitude of voltage in the starting voltage value of indivedual spray orifices 350 and the step 220 in the stackable step 210 of step 230 is to obtain the voltage that shoots out of indivedual spray orifices 350.At this moment, through choosing different adjustment magnitudes of voltage, what can make indivedual spray orifices 350 shoots out the voltage difference alienation, and then makes the big or small randomly changing of the color inks drop that indivedual spray orifices 350 are sprayed.
Mostly the drop drop point that color inks spray orifice of the prior art is sprayed is to keep fixing; Make the drop drop point of all spray orifices all maintain precalculated position same on the colored filter; Except that operational difficulty was arranged, along with increase service time, the difference between indivedual spray orifices also manifested thereupon.As shown in Figure 4, it is the sketch map that shows another embodiment of colored filter with defective.In the present embodiment; Because there is deviation the drop of spray orifice 450c drippage position and adjacent other time pixel drop drippage position; Obvious ignore can appear in color inks clusters of droplets 460 that therefore should row, and makes and fixing defective occurs on the full wafer colored filter, has influence on the quality of colored filter 400.
With reference to Fig. 5 and Fig. 6, it is to show that respectively another preferred embodiment of injection method of color inks of the present invention is applied in the enforcement sketch map and the flow chart of colored filter.Include pixel cell 512,514,516 in the colored filter 500 a plurality of times, and the inferior pixel cell 512,514,516 of each row all there is corresponding spray orifice 550.Each time pixel cell 512,514,516 defines respectively has first frame 520 and second frame 530; Among each time pixel cell 512,514,516 then is to be filled up by the formed color inks clusters of droplets 560 of multiple spot color inks, and this first frame 520 and second frame 530 can be defined by the matrix that for example patterning organic material, patterning inorganic material or patterned metal layer are made.
In proper order pixel cell 512 be an example, and the injection method of color inks starts from the predetermined sides of 520 on first frame of decision color inks clusters of droplets 560 and inferior pixel cell 512 apart from value h1 (step 610).Then, determine a variation value h2 (step 620) at random, the size of this variation value h2 preferably is apart from 1/5th of value less than predetermined sides.Then, the stack predetermined sides is apart from value h1 and variation value h2, to obtain the first back gauge value h3 (step 630).
The first back gauge value h3 and the second back gauge value h4 sum can be the twice of predetermined sides apart from value h1, and promptly the first back gauge value h3 and the second back gauge value h4 are designed to complementation, and both sums still predetermined sides with original are identical apart from value h1 sum.For example, the first back gauge value h3 among the inferior pixel cell 512a can be predetermined sides and adds variation value h2 apart from value h1, deducts variation value h2 and the second back gauge value h4 can be predetermined sides apart from value h1.And in another time pixel cell 512b, the first back gauge value h3 ' can be predetermined sides and deducts variation value h2 ' apart from value h1 ', and the second back gauge value h4 ' can be predetermined sides and adds variation value h2 ' apart from value h1 '.
The injection method of the color inks of present embodiment can change the drippage position of each color inks clusters of droplets 560 randomly; And stagger through the Changing Pattern of suitable design logic with indivedual spray orifices 550; Drippage position difference branch with color inks clusters of droplets 560 dissipates; Solving drippage site error, and highlight the situation of the white point that concentrates on particular column because of single spray orifice 550.
For example, the predetermined sides of 520 on first frame of color inks clusters of droplets 560 and time pixel cell 512 can be 50 μ m apart from value h1 in the step 610.Can comprise in the step 620 and determine a maximum variation value, wherein maximum variation value is corresponding to the allowable error value of this predetermined sides apart from value, its size preferably be predetermined sides apart from 1/5th of value h1, i.e. 10 μ m.Then, can comprise in the step 620 maximum variation value is divided into 11 to 21 five equilibriums, variation value h2 then can be between a plurality of five equilibriums that maximum variation value is split to form picked at random.Then, the stack predetermined sides is apart from the variation value h2 of value h1 and picked at random, to obtain the first back gauge value h3 (step 630).
Spacing between pixel cell color inks clusters of droplets 560 and inferior can be by the shooing out the time of color inks, i.e. the translational speed of spray orifice 550 and the time difference control of shooing out.Can be during design earlier with maximum variation value, for example ± 10 μ m converses spray orifice 550 and moves ± the needed traveling time of 10 μ m divided by the translational speed of spray orifice 550; Again traveling time is divided into 11 to 21 equal portions, wherein, the corresponding maximum variation value of the traveling time behind each five equilibrium; Next; Select one at random in the traveling time behind five equilibrium as the time difference, the zero-time of shooing out of the script that is added to again obtains first and shoots out the time; Can make the time of the shooing out randomization of color inks, and then change the spacing between color inks clusters of droplets 560 and time pixel cell.
In addition; Because the time difference that different spray orifices 550 are chosen at each adjacent pixel cell maybe be different; Therefore; Not only have the differentiation effect, in the horizontal direction, can find out color inks clusters of droplets 560 drippage position variantization effects too in the drippage position of vertical direction (being the direction of spray printing) color inks clusters of droplets 560.
Can know by the invention described above preferred embodiment, use the present invention and have advantage.The injection method of color inks of the present invention can be through adjusting shooing out voltage or adjusting the drippage spacing of color inks clusters of droplets at random of spray orifice at random; The drop size of color inks is dissipated with the difference branch that drips the position, cause the problem of the defective of colored filter with the difference that solves the Yin Teding spray orifice.
Though the present invention discloses as above with preferred embodiment; Right its is not in order to limit the present invention; Any those skilled in the art are not breaking away from the spirit and scope of the present invention, and when can doing various changes and retouching, so protection scope of the present invention is as the criterion when looking the claim person of defining who encloses.
Claims (5)
1. the injection method of a color inks comprises:
The starting voltage value of decision spray orifice, this starting voltage value is corresponding to the predetermined jetting amount of this spray orifice;
Determine the maximum adjustment magnitude of voltage of this spray orifice, this maximum adjustment magnitude of voltage is corresponding to the allowable error value of this predetermined jetting amount;
This starting voltage value that superposes and adjustment magnitude of voltage, to obtain shooing out voltage, wherein the size of this adjustment magnitude of voltage is to picked at random between this maximum adjustment magnitude of voltage zero; And
This spray orifice shoots out the inferior pixel cell in voltage ejection this color inks to the pixel cell with this.
2. the injection method of color inks as claimed in claim 1, wherein this allowable error value is positive and negative 2% of this predetermined jetting amount.
3. the injection method of color inks as claimed in claim 1, also comprising and cutting apart this maximum adjustment magnitude of voltage is a plurality of five equilibriums, the size of this adjustment magnitude of voltage is a picked at random in said a plurality of five equilibriums.
4. the injection method of color inks as claimed in claim 3 wherein should be divided into 11 to 21 five equilibriums by maximum adjustment magnitude of voltage.
5. the injection method of color inks as claimed in claim 1, wherein this pixel cell is the pixel cell of colored filter, this color inks comprises chromatic photoresist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101410549A CN101590727B (en) | 2008-05-28 | 2008-05-28 | Method for jetting colorful ink |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101410549A CN101590727B (en) | 2008-05-28 | 2008-05-28 | Method for jetting colorful ink |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200810109314XA Division CN100572068C (en) | 2008-05-28 | 2008-05-28 | The injection method of color inks |
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| Publication Number | Publication Date |
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| CN101590727A CN101590727A (en) | 2009-12-02 |
| CN101590727B true CN101590727B (en) | 2012-04-04 |
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| CN2009101410549A Active CN101590727B (en) | 2008-05-28 | 2008-05-28 | Method for jetting colorful ink |
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