CN101424760A - Color filter and method for manufacturing the same - Google Patents
Color filter and method for manufacturing the same Download PDFInfo
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- CN101424760A CN101424760A CNA2007101692048A CN200710169204A CN101424760A CN 101424760 A CN101424760 A CN 101424760A CN A2007101692048 A CNA2007101692048 A CN A2007101692048A CN 200710169204 A CN200710169204 A CN 200710169204A CN 101424760 A CN101424760 A CN 101424760A
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Abstract
The invention relates to a colored light filtering piece and a manufacturing method thereof. The manufacturing method comprises the steps that: a basal plate is provided, a plurality of black matrixes are formed on the basal plate, the black matrixes define a plurality of secondary picture element areas, at least one ink duct is formed on each black matrix, an ink resisting layer is formed on the black matrixes, and the ink ducts are exposed. The colored light filtering piece uses one ink duct to contain overflow ink, therefore, the ink dusts are designed by matching with the ink resisting layer, the overflow of ink can be repressed, and consequently, the color cast of the colored light filtering piece is prevented.
Description
Technical field
The invention relates to a kind of colored filter, especially refer to a kind of colored filter that is applicable to ink-jetting process.
Background technology
Along with the demand of LCD is grown up, the demand of colored filter also increases thereupon.Therefore, reduce the colored filter manufacturing cost, become instant problem.
The design of colored filter needs characteristics such as high colour purity, the high grade of transparency, high contrast, known chromatic filter layer coating process has four kinds, is respectively decoration method (Dyeing), pigment dispersing method (Pigment Dispersion), electroplating deposition method (Electro-Deposition) and print process (Printing).Yet above-mentioned these methods are not only outside complex process, the process equipment costliness, and the size of colored filter is also restricted.In addition, when technology and size increase, the colored filter yield will descend thereupon, thereby cause this raising.
For solving the known problem of color filter technology, development in recent years goes out ink-jet method (Ink-Jet).Ink-jet method has many superior characteristics, as uses small and exquisite equipment, reduces the process time and lower exhausted amount of ink.Yet, during utilizing ink-jet method to make colored filter, when colored ink droplet sprays into the sub picture element district (sub-pixel) of black matrix", easy high drop diffusivity because of color inks, the ink overflow phenomena takes place, thereby cause colour mixture and color distribution inequality, and influence color contrast, this is a color offset phenomenon.
Be the color offset phenomenon of preventing, known method is to form barricade by gold-tinted lithography process technology, to deepen the space that picture element region holds ink, to prevent the ink overflow.Yet this kind way not only technology is complicated, and also not obvious for the effect that prevents colour cast.On the other hand, except the barricade method, another known method takes place to prevent colour cast for forming ink-repellent layer on black matrix".Only this kind method only relies on the effect of ink-repellent layer, also can't effectively stop the ink overflow, and the colored filter that goes out of manufacturing still has colour cast, and is limited for the raising effect of yield.
In sum, in the color filter technology, the colored filtering layer of colour mixture is problem anxious to be improved.Especially in the ink-jet method technology, partly black matrix" is crossed in the ink overflow, causes colour cast, and instant especially problem waits to solve.
Summary of the invention
The object of the present invention is to provide a kind of colored filter and manufacture method thereof,, and then prevent the colour cast of colored filter with the overflow of effective inhibition colored ink.
For achieving the above object, colored filter provided by the invention comprises:
One substrate;
A most black matrix" are arranged on this substrate, and wherein each those black matrix" has at least one ink duct, and those black matrix"s define a plurality of sub picture elements district; And
One ink-repellent layer is arranged on those black matrix"s and exposes this ink duct.
Described colored filter, wherein, this colored filter also comprises a filter layer, and this filter layer is arranged in each those sub picture element district.
Described colored filter, wherein, this ink duct width is 40% to 60% of this black matrix" width.
Described colored filter, wherein, the bottom of this ink duct is a zigzag.
Described colored filter, wherein, this ink-repellent layer has at least one hypotenuse.
Described colored filter, wherein, this ink-repellent layer is one trapezoidal.
Described colored filter, wherein, the material of this ink-repellent layer comprises an ester type compound and a siliceous potpourri at least.
Described colored filter, wherein, the contact angle between this filter layer and this ink-repellent layer is spent to 90 degree between 40.
Manufacturing method of color filters provided by the invention, its step comprises:
One substrate is provided;
Form most black matrix"s on this substrate, and those black matrix"s define a plurality of sub picture elements district;
Form at least one ink duct on each those black matrix"; And
Form an ink-repellent layer on those black matrix"s and expose this ink duct.
Described manufacturing method of color filters also comprises:
Form a filter layer in each those sub picture element district.
Described manufacturing method of color filters, wherein, the method that forms this ink duct comprises laser, gold-tinted lithography process or shadow tone light shield exposure (half-tone exposure).
Described manufacturing method of color filters, wherein, the method that forms this ink-repellent layer is for utilizing gold-tinted lithography process or transfer printing.
Description of drawings
Fig. 1～5th, the cut-open view of the colored filter manufacturing process of a preferred embodiment of the present invention.
Fig. 6 is the vertical view of the black matrix" of a preferred embodiment of the present invention.
Fig. 7 is the cut-open view of the black matrix" of a preferred embodiment of the present invention.
Fig. 8 is the cut-open view of the black matrix" of a preferred embodiment of the present invention.
Fig. 9 is the cut-open view of the black matrix" of a preferred embodiment of the present invention.
Primary clustering symbol description in the accompanying drawing:
11 substrates
12 black matrix"s
13a sub picture element district
The 13b filter layer
14 ink-repellent layers
15 ink ducts
Embodiment
Technical characterictic of the present invention is that the design of ink duct collocation ink-repellent layer can effectively suppress the colored ink overflow, and then prevent the colour cast of colored filter.Therefore, manufacture method of the present invention is different from utilizes the barricade method in the known technology, or only relies on the overflow of ink-repellent layer inhibition colored ink.
Colored filter of the present invention comprises: substrate, black matrix" and ink-repellent layer.More particularly, black matrix" is to be arranged on the substrate, and each black matrix" has at least one ink duct; Ink-repellent layer is arranged on the black matrix" and exposes ink duct.Wherein, ink duct can hold the colored ink of overflow.
Colored filter of the present invention can be used in the LCD.
Manufacturing method of color filters of the present invention comprises step: substrate is provided, forms black matrix", forms ink duct and forms ink-repellent layer.More particularly, manufacture method of the present invention comprises step: substrate is provided; Form black matrix" on substrate, and the black matrix" definable goes out the sub picture element district; Form at least one ink duct on each black matrix"; And form ink-repellent layer on black matrix" and expose ink duct.Wherein, form filter layer in the sub picture element district with colored ink.Manufacturing method of color filters of the present invention also comprises the step that forms filter layer.More particularly, manufacture method of the present invention also comprises step: form filter layer in picture element region each time.
Black matrix" aspect of the present invention is not limit.Be preferably, black matrix" of the present invention is that array is arranged.In addition, black matrix" material of the present invention is not limit.Be preferably, black matrix" of the present invention comprises metal or resin.Black matrix" function of the present invention is not limit.Be preferably a plurality of sub picture elements of black matrix" definable of the present invention district.Moreover colored filter of the present invention comprises that assembly do not limit.Be preferably, colored filter of the present invention also comprises a filter layer; Be more preferred from, colored filter of the present invention comprises that also one is arranged at the filter layer in the above-mentioned sub picture element district.
Ink duct of the present invention forms the position and does not limit.Be preferably, ink duct of the present invention is formed on the black matrix".In addition, ink duct size of the present invention is not limit.Be preferably, ink duct width of the present invention is 40% to 60% of a black matrix" width.And ink duct bottom shape of the present invention is not limit.Be preferably, the bottom transverse cross section of ink duct of the present invention is zigzag or plane.
Ink-repellent layer of the present invention forms the position and does not limit.Be preferably, ink-repellent layer of the present invention is formed on the black matrix", and exposes ink duct.In addition, ink-repellent layer profile of the present invention is not limit.Be preferably, ink-repellent layer of the present invention has at least one hypotenuse.Be more preferred from, ink-repellent layer of the present invention has trapezoidal xsect.Moreover the material of ink-repellent layer of the present invention is not limit.Be preferably, the material of ink-repellent layer of the present invention comprises an ester type compound and a siliceous potpourri at least.
Contact angle is not limit between filter layer of the present invention and the ink-repellent layer.Be preferably, the contact angle between filter layer of the present invention and the ink-repellent layer is spent to 90 degree between 40.Be more preferred from, the contact angle between filter layer of the present invention and the ink-repellent layer is spent to 90 degree between 60.In addition, contact angle is not limit between filter layer of the present invention and the substrate.Be preferably, the contact angle between filter layer of the present invention and the substrate is spent to 50 degree between 0.In addition, substrate aspect of the present invention is not limit.Be preferably, substrate of the present invention is a transparency carrier.Be more preferred from, substrate of the present invention is a glass.
The present invention forms the method for filter layer and does not limit.Be preferably, the method that the present invention forms filter layer comprises ink-jet method.In addition, the present invention's method of forming ink duct is not limit.Be preferably, the method that the present invention forms ink duct comprises laser or gold-tinted lithography process.Be more preferred from, aforementioned gold-tinted lithography process is to utilize shadow tone light shield exposure (half-tone exposure).On the other hand, the present invention's method of forming ink-repellent layer is not limit.Be preferably, the present invention forms the method for ink-repellent layer for utilizing transfer printing or gold-tinted lithography process.
Below by particular specific embodiment explanation embodiments of the present invention, those skilled in the art can understand other advantage of the present invention and effect easily by the content that this instructions disclosed.The present invention also can be implemented or be used by other different specific embodiment, and the every details in this instructions also can be carried out various modifications and change based on different viewpoints and application under not departing from spirit of the present invention.
Embodiment 1
Please refer to Fig. 1 to Fig. 5, be the cut-open view of colored filter manufacturing process of the present invention.At first, as shown in Figure 1, provide a substrate 11.In the present embodiment, the material of substrate 11 is a glass.
Secondly, as shown in Figure 2, forming most black matrix"s 12 on substrate 11, and make black matrix" 12 arrange shaping in the array mode, as shown in Figure 6, is the vertical view of black matrix" 12 arrays.Simultaneously, black matrix" 12 array defines go out a plurality of sub picture element district 13a that manifest the part substrate.In addition, black matrix" 12 of the present invention can be resin or metal, and in the present embodiment, black matrix" 12 is a resin.
Then, as shown in Figure 3, form ink duct 15 on black matrix" 12, holding the ink that overflows, and then prevent to form colour cast.In the present embodiment, be to form ink duct 15, and ink duct 15 width are 40% to 60% of black matrix" 12 width with laser.Next, as shown in Figure 4, form an ink-repellent layer 14 on black matrix" 12 and expose ink duct 15.Wherein, ink-repellent layer 14 can transfer printing or the gold-tinted lithography process form, and in present embodiment, 14 of ink-repellent layers are to form with transfer printing, and the material of ink-repellent layer 14 comprises ester type compound and siliceous potpourri.
At last, as shown in Figure 5, form a filter layer 13b in sub picture element district 13a with at least one colored ink, and then finish the colored filter of present embodiment, it comprises: a substrate 11, most individual black matrix" 12 and an ink-repellent layer 14.Wherein, each those black matrix" 12 has at least one ink duct 15, and black matrix" 12 is to arrange in the array mode to be formed on the substrate 11.Simultaneously, black matrix" 12 array defines go out a plurality of sub picture element district 13a that manifest the part substrate.In addition, colored filter also comprises a filter layer 13b, and filter layer 13b is arranged among those sub picture element districts 13a.Wherein, filter layer 13b is formed among those sub picture element districts 13a by at least one colored ink.On the other hand, ink-repellent layer 14 is formed on the black matrix" 12, and with the colored ink polar repulsion, ink duct 15 then can hold the colored ink of overflow, so just can effectively suppress the colored ink overflow.In the present embodiment, the method for formation filter layer 13b is an ink-jet method.In addition, the contact angle between filter layer 13b and the ink-repellent layer 14 is spent to 90 degree between 60; Contact angle between filter layer 13b and the substrate 11 is spent to 50 degree between 0.
Because during the ink-jet method technology of known optical filter, ink can overflow be crossed black matrix", thereby causes colour cast easily, therefore the invention provides the design of ink duct 15 in conjunction with ink-repellent layer 14,, prevent that colour cast from taking place in order to do stoping the ink overflow.
Embodiment 2
The colorful filter structure of present embodiment and embodiment 1 are roughly the same, but the bottom transverse cross section of the ink duct 15 of present embodiment is a zigzag, as shown in Figure 7.Its manufacture method and embodiment 1 are different be in, the method that present embodiment forms ink duct 15 is to utilize shadow tone light shield exposure (half-toneexposure), directly when making black matrix" 12, makes ink duct 15 synchronously, to simplify technology.
Embodiment 3
The colorful filter structure of present embodiment and embodiment 1 are roughly the same, but the ink-repellent layer 14 of present embodiment has at least one hypotenuse, as shown in Figure 8.Its manufacture method difference from Example 1 is that the formation of the ink-repellent layer 14 of present embodiment is to utilize the gold-tinted lithography process.
Embodiment 4
The colorful filter structure of present embodiment and embodiment 1 are roughly the same, but the ink-repellent layer 14 of present embodiment has trapezoidal cross-section.As shown in Figure 9, its manufacture method difference from Example 1 is that the formation of the ink-repellent layer 14 of present embodiment is to utilize the gold-tinted lithography process.
The foregoing description is only given an example for convenience of description, and the claim scope that the present invention advocated is from should but not only limiting to the foregoing description with described being as the criterion of claim scope of application.
Claims (12)
1, a kind of colored filter comprises:
One substrate;
A most black matrix" are arranged on this substrate, and wherein each those black matrix" has at least one ink duct, and those black matrix"s define a plurality of sub picture elements district; And
One ink-repellent layer is arranged on those black matrix"s and exposes this ink duct.
2, colored filter as claimed in claim 1, wherein, this colored filter also comprises a filter layer, and this filter layer is arranged in each those sub picture element district.
3, colored filter as claimed in claim 1, wherein, this ink duct width is 40% to 60% of this black matrix" width.
4, colored filter as claimed in claim 1, wherein, the bottom of this ink duct is a zigzag.
5, colored filter as claimed in claim 1, wherein, this ink-repellent layer has at least one hypotenuse.
6, colored filter as claimed in claim 1, wherein, this ink-repellent layer is one trapezoidal.
7, colored filter as claimed in claim 1, wherein, the material of this ink-repellent layer comprises an ester type compound and a siliceous potpourri at least.
8, colored filter as claimed in claim 2, wherein, the contact angle between this filter layer and this ink-repellent layer is spent to 90 degree between 40.
9, a kind of manufacturing method of color filters, its step comprises:
One substrate is provided;
Form most black matrix"s on this substrate, and those black matrix"s define a plurality of sub picture elements district;
Form at least one ink duct on each those black matrix"; And
Form an ink-repellent layer on those black matrix"s and expose this ink duct.
10, manufacturing method of color filters as claimed in claim 9 also comprises:
Form a filter layer in each those sub picture element district.
11, manufacturing method of color filters as claimed in claim 9, wherein, the method that forms this ink duct comprises laser, gold-tinted lithography process or shadow tone light shield exposure (half-tone exposure).
12, manufacturing method of color filters as claimed in claim 9, wherein, the method that forms this ink-repellent layer is for utilizing gold-tinted lithography process or transfer printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101692048A CN101424760A (en) | 2007-11-02 | 2007-11-02 | Color filter and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101692048A CN101424760A (en) | 2007-11-02 | 2007-11-02 | Color filter and method for manufacturing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101424760A true CN101424760A (en) | 2009-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101692048A Pending CN101424760A (en) | 2007-11-02 | 2007-11-02 | Color filter and method for manufacturing the same |
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| CN (1) | CN101424760A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681246A (en) * | 2012-04-12 | 2012-09-19 | 京东方科技集团股份有限公司 | Color film substrate, method for manufacturing same and liquid crystal display |
| CN107632440A (en) * | 2017-10-09 | 2018-01-26 | 天马微电子股份有限公司 | Display panel and preparation method thereof and display device |
| CN108388359A (en) * | 2017-02-02 | 2018-08-10 | 恒颢科技股份有限公司 | Electronic device and manufacturing method thereof |
| CN110928025A (en) * | 2019-11-26 | 2020-03-27 | Tcl华星光电技术有限公司 | Color film substrate, manufacturing method thereof and display device |
| CN110955009A (en) * | 2019-12-20 | 2020-04-03 | 瑞声通讯科技(常州)有限公司 | Lens structure and ink coating method |
-
2007
- 2007-11-02 CN CNA2007101692048A patent/CN101424760A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681246A (en) * | 2012-04-12 | 2012-09-19 | 京东方科技集团股份有限公司 | Color film substrate, method for manufacturing same and liquid crystal display |
| CN102681246B (en) * | 2012-04-12 | 2014-12-17 | 京东方科技集团股份有限公司 | Color film substrate, method for manufacturing same and liquid crystal display |
| CN108388359A (en) * | 2017-02-02 | 2018-08-10 | 恒颢科技股份有限公司 | Electronic device and manufacturing method thereof |
| CN108388359B (en) * | 2017-02-02 | 2020-12-25 | 恒颢科技股份有限公司 | Electronic device and manufacturing method thereof |
| CN107632440A (en) * | 2017-10-09 | 2018-01-26 | 天马微电子股份有限公司 | Display panel and preparation method thereof and display device |
| CN107632440B (en) * | 2017-10-09 | 2021-04-02 | 天马微电子股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN110928025A (en) * | 2019-11-26 | 2020-03-27 | Tcl华星光电技术有限公司 | Color film substrate, manufacturing method thereof and display device |
| CN110955009A (en) * | 2019-12-20 | 2020-04-03 | 瑞声通讯科技(常州)有限公司 | Lens structure and ink coating method |
| CN110955009B (en) * | 2019-12-20 | 2022-02-01 | 诚瑞光学(常州)股份有限公司 | Lens structure and ink coating method |
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Open date: 20090506 |