CN101515080B - Colored filter and manufacturing method - Google Patents
Colored filter and manufacturing method Download PDFInfo
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- CN101515080B CN101515080B CN2008100578482A CN200810057848A CN101515080B CN 101515080 B CN101515080 B CN 101515080B CN 2008100578482 A CN2008100578482 A CN 2008100578482A CN 200810057848 A CN200810057848 A CN 200810057848A CN 101515080 B CN101515080 B CN 101515080B
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- black matrix
- glass substrate
- pit
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- color resin
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Abstract
The invention relates to a colorized filter, which comprises a glass substrate, colorized resins and a black matrix, wherein the glass substrate is provided with a plurality of concave pits; the black matrix is positioned on the glass substrate and is not overlapped with the concave pits; and the concave pits contain the colorized resins. The invention further relates to a method for manufacturing the colorized filter, which comprises the following steps: etching the glass substrate with an etchant for improving the hydrophilicity of the glass substrate, and forming the concave pits for containing the colorized resins; forming the black matrix on regions without the concave pits; dripping the colorized resins into the concave pits respectively; and hardening the colorized resins to form the colorized filter. The colorized filter effectively overcomes the defect that the manufacturing cost for colorized filter of the prior art is high, and effectively reduces the cost of the colorized filter.
Description
Technical field
The present invention relates to a kind of display panels and manufacture method thereof, particularly a kind of colored filter and manufacture method thereof.
Background technology
Liquid crystal indicator (Liquid Crystal Display, be designated hereinafter simply as LCD) be a kind of main flat display apparatus, mainly comprise array base palte, colored filter and backlight, colored filter mainly comprises redness, green, blue resins and black matrix (Black Matrix is hereinafter to be referred as BM).
The general employing splashed into resin method (Ink Jet) when prior art was made colored filter, and these method concrete steps are: form pit at glass baseplate surface with black matrix; Adopt carbon tetrafluoride (CF4) plasma treatment glass substrate, to improve the water wettability of glass substrate; Employing splashes into resin method and splashes into redness, green, blue resins respectively to pit; , blue resins red, green by the hardening process sclerosis.
There is following defective in said method: owing to existing glass substrate water wettability is poor, therefore need to adopt carbon tetrafluoride (CF4) plasma treatment glass substrate, to improve the water wettability of glass substrate, employing splashes into resin method and splashes into color resin then.Can cause increasing the defective of colored filter manufacturing cost like this.
Summary of the invention
The purpose of this invention is to provide a kind of manufacturing method of color filters, by being used to improve the hydrophilic etchant etching glass substrate of glass substrate, improve the water wettability of glass substrate when forming pit, overcome the high defective of colored filter manufacturing cost in the prior art.
For achieving the above object, the invention provides a kind of colored filter, comprise glass substrate, color resin and black matrix, glass substrate is provided with several pits; Black matrix is positioned on the glass substrate, and black matrix and pit are not overlapping; Be equipped with color resin in the pit.
Wherein, color resin is: red resin, green resin or blue resins.
Wherein, the volume of pit is identical.
For achieving the above object, the present invention also provides a kind of manufacturing method of color filters, comprising: form black matrix at glass baseplate surface; Be used to improve the hydrophilic etchant etching glass substrate of glass substrate, do not have the zone of covering to be formed for the pit of ccontaining color resin at black matrix; In pit, splash into color resin respectively; The sclerosis color resin forms colored filter.
Wherein forming black matrix at glass baseplate surface is specially: the black matrix material of deposition on glass substrate; On the glass substrate that deposits black matrix material, be coated with photoresist by coating process; Under the coverage of mask plate, by the exposure technology exposed photoresist; Remove the photoresist that is exposed by developing process; By the black matrix material of etch process etching, and form black matrix; Technology is removed residual photoresist by removing photoresist.
Wherein, splashing into color resin respectively in pit is specially: splash into red resin, green resin or blue resins respectively in pit; The sclerosis color resin is specially: sclerosis red resin, green resin or blue resins form colored filter.
Wherein, be used to improve the glass baseplate surface that the black matrix of the hydrophilic etchant etching of glass substrate does not have covering, the pit that does not have the zone of covering to be formed for ccontaining color resin at black matrix is specially: with hydrogen fluoride etch agent etching glass substrate, do not have the zone of covering to be formed for the pit of ccontaining color resin at black matrix.
For achieving the above object, the present invention also provides a kind of manufacturing method of color filters, comprising: be used to improve the hydrophilic etchant etching glass substrate of glass substrate, be formed for the pit of ccontaining color resin; Form black matrix in the zone that does not form pit, and the same mask plate that uses when adopt forming described pit forms described black matrix; In pit, splash into color resin respectively; The sclerosis color resin forms colored filter.
Wherein, forming black matrix is specially: the black matrix material of deposition on glass substrate; On the glass substrate that deposits black matrix material, be coated with photoresist by coating process; Under the coverage of mask plate, by the exposure technology exposed photoresist; Remove the photoresist that is exposed by developing process; By the black matrix material of etch process etching, and form black matrix; Technology is removed residual photoresist by removing photoresist.
Wherein, be used to improve the hydrophilic etchant etching glass substrate of glass substrate, the pit that is formed for ccontaining color resin is specially: with hydrogen fluoride etch agent etching glass substrate, be formed for the pit of ccontaining color resin.
Colored filter of the present invention, the method for the pit by being provided for ccontaining color resin on glass substrate has realized colored filter.
Method for manufacturing colored filtering substrate of the present invention, on the glass substrate that is formed with black matrix, be used to improve the hydrophilic etchant etching glass substrate of glass substrate, to improve the glass substrate water wettability, overcome prior art and formed pit afterwards by the extra hydrophilic defective of treatment step raising glass substrate.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the base plan synoptic diagram of colored filter embodiment of the present invention;
Fig. 2 is the A-A schematic cross-section of Fig. 1 of the present invention;
Fig. 3 is the first embodiment process flow diagram of method for manufacturing colored filtering substrate of the present invention;
Fig. 4 is for forming the process flow diagram of black matrix among first embodiment of method for manufacturing colored filtering substrate of the present invention;
Fig. 5 is the second embodiment process flow diagram of method for manufacturing colored filtering substrate of the present invention;
Fig. 6 is for forming the process flow diagram of pit among second embodiment of method for manufacturing colored filtering substrate of the present invention.
Description of reference numerals
The 1-glass substrate; 2-deceives matrix; The 3-pit;
The 401-red resin; The 402-green resin; The 403-blue resins.
Embodiment
The embodiment of colored filter of the present invention
Fig. 1 is the base plan synoptic diagram of colored filter embodiment of the present invention, and Fig. 2 is the A-A schematic cross-section of Fig. 1 of the present invention.As depicted in figs. 1 and 2, colored filter of the present invention comprises: color resin, black matrix 2 and glass substrate 1, and wherein glass substrate 1 is provided with several pits that is used for ccontaining color resin 3; Also be provided with black matrix 2 on glass substrate 1, black matrix 2 is covered with glass substrate 1 surface that does not have pit 3, and the pit 3 of promptly black matrix 2 and glass substrate 1 is not overlapping, and is used to block the unusual liquid crystal molecule of arrangement; In pit 3, be equipped with color resin.
The embodiment of colored filter of the present invention, the method of the pit by on glass substrate, being provided for ccontaining color resin, realized colored filter, if use the black matrix of thickness same as the prior art in the present embodiment, then can compare existing colored filter and be equipped with more color resin, help improving the colourity of color resin, and then improve the quality of colored filter; If use the color resin of volume same as the prior art in the present embodiment, then can corresponding minimizing deceive the thickness of matrix, and then help reducing the thickness of liquid crystal indicator.
In the present embodiment colored filter, color resin can be red resin, green resin or blue resins, further can also use the color resin of other color according to the concrete needs of Show Color.
In the present embodiment colored filter, the degree of depth h of each pit equates, width d equates that the volume of each pit is identical like this, thereby at the color resin of the ccontaining same amount of each pit.In actual production, can change the amount that pit depth h and width d adjust the color resin that is contained in pit according to concrete needs.
First embodiment of method for manufacturing colored filtering substrate of the present invention
Fig. 3 is the first embodiment process flow diagram of method for manufacturing colored filtering substrate of the present invention, and these method concrete steps are as follows:
First embodiment of method for manufacturing colored filtering substrate of the present invention, on the glass substrate that is formed with black matrix, be used to improve the hydrophilic etchant etching glass substrate of glass substrate, to improve the glass substrate water wettability, having overcome prior art forms after the pit, improve the hydrophilic defective of glass substrate by extra treatment step, and the present embodiment method for manufacturing colored filtering substrate if form the black matrix of thickness same as the prior art, then can increase the capacity of color resin relatively; If in pit, be equipped with the color resin of volume same as the prior art, then can reduce the thickness of black matrix relatively, thereby help reducing the thickness of liquid crystal indicator.
In first embodiment of method for manufacturing colored filtering substrate of the present invention, form the step of black matrix, as shown in Figure 4, for forming the process flow diagram of black matrix among first embodiment of method for manufacturing colored filtering substrate of the present invention, the method that forms black matrix specifically comprises as follows:
The foregoing description has formed the black matrix with setting pattern by simple process steps.
In the above-described embodiments, the black matrix material of deposition on the glass substrate can for: on glass substrate, deposit chromium.
Further, in first embodiment of method for manufacturing colored filtering substrate of the present invention, in pit, splash into respectively color resin can for: in described pit, splash into red resin, green resin or blue resins respectively; Correspondingly, the sclerosis color resin can be harden described red resin, green resin or blue resins, and forms colored filter.
Further, in first embodiment of method for manufacturing colored filtering substrate of the present invention, be used to improve the glass baseplate surface that the described black matrix of the hydrophilic etchant etching of glass substrate does not have covering, be formed for ccontaining color resin pit can for: with hydrogen fluoride (HF) etchant etching glass substrate, be formed for the pit of ccontaining color resin.
Second embodiment of method for manufacturing colored filtering substrate of the present invention
Fig. 5 is the second embodiment process flow diagram of method for manufacturing colored filtering substrate of the present invention, and these method concrete steps are as follows:
Step 201, at glass baseplate surface, be used to improve the hydrophilic etchant of glass substrate, be formed for the pit of ccontaining color resin;
Step 202, at glass baseplate surface, the zone that does not form pit forms black matrix, makes described black matrix between described pit, and blocks and arrange unusual liquid crystal molecule;
Step 203, in described pit, splash into color resin respectively;
Step 204, the described color resin that hardens form colored filter.
Second embodiment of method for manufacturing colored filtering substrate of the present invention by being used to improve the method that the hydrophilic etchant of glass substrate forms pit earlier, having overcome prior art and has improved the hydrophilic defective of glass substrate by extra treatment step.
In second embodiment of method for manufacturing colored filtering substrate of the present invention, being used to improve the hydrophilic etchant of glass substrate is hydrogen fluoride.
In second embodiment of method for manufacturing colored filtering substrate of the present invention, the method for formation pit is the process flow diagram that forms pit among second embodiment of method for manufacturing colored filtering substrate of the present invention as shown in Figure 6, and this method specifically comprises as follows:
Step 2011, at clean glass baseplate surface, be coated with photoresist equably;
Step 2012, under coverage with mask plate of setting pattern, by exposure technology, the described photoresist that exposes makes that the photoresist corresponding with described setting pattern is not exposed, remaining photoresist is exposed;
Step 2013, remove the photoresist that is exposed by developing process, make that the glass baseplate surface corresponding with described setting pattern covered by described photoresist, remaining glass baseplate surface is exposed;
Step 2014, the described glass baseplate surface that exposes by the etch process etching, and formation and the corresponding pit of described setting pattern;
Step 2015, remove residual photoresist by the technology of removing photoresist, the technology of wherein removing photoresist can be stripping technology, perhaps can be cineration technics.
In second embodiment of method for manufacturing colored filtering substrate of the present invention, it is similar to the method that forms black matrix in first embodiment of method for manufacturing colored filtering substrate of the present invention to form the method for black matrix, in the specific implementation process, can be when forming pit the identical mask plate of used mask plate form the step of black matrix, perhaps can be when forming pit the corresponding mask plate of used mask plate form the step of black matrix, the non-transmission area of the mask plate that the transmission area of the mask plate that uses when promptly forming pit is corresponding to be used when forming black matrix, the corresponding transmission area that forms the mask plate that uses when deceiving matrix of the non-transmission area of the mask plate that uses when forming pit.When if the identical mask plate of used mask plate forms and deceives matrix during with the formation pit, the photoresist of the photoresist that is removed in the developing process for not being exposed.Be specially: the black matrix material of deposition on glass substrate, as materials such as chromium; On the glass substrate that deposits black matrix material, be coated with photoresist by coating process; Under the coverage of mask plate, by the exposure technology described photoresist that exposes; Remove the photoresist that is exposed by developing process; By the described black matrix material of etch process etching, and form black matrix; Technology is removed residual photoresist by removing photoresist.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (3)
1. manufacturing method of color filters is characterized in that comprising:
Be used to improve the hydrophilic etchant etching glass substrate of glass substrate, be formed for the pit of ccontaining color resin;
Form black matrix in the zone that does not form pit, and the same mask plate that uses when adopt forming described pit forms described black matrix;
In described pit, splash into color resin respectively;
The described color resin that hardens forms colored filter.
2. manufacturing method of color filters according to claim 1 is characterized in that forming black matrix and is specially:
The black matrix material of deposition on glass substrate;
On the black matrix material of deposition, be coated with photoresist by coating process;
Under the coverage of mask plate, by the exposure technology described photoresist that exposes;
Remove the photoresist that is exposed by developing process;
In the described black matrix material of the regional etching of removing photoresist, and form black matrix by etch process;
Technology is removed residual photoresist by removing photoresist.
3. manufacturing method of color filters according to claim 1 and 2, it is characterized in that being used to improve the hydrophilic etchant etching glass substrate of glass substrate, the pit that is formed for ccontaining color resin is specially: with hydrogen fluoride etch agent etching glass substrate, be formed for the pit of ccontaining color resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100578482A CN101515080B (en) | 2008-02-19 | 2008-02-19 | Colored filter and manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100578482A CN101515080B (en) | 2008-02-19 | 2008-02-19 | Colored filter and manufacturing method |
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| Publication Number | Publication Date |
|---|---|
| CN101515080A CN101515080A (en) | 2009-08-26 |
| CN101515080B true CN101515080B (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100578482A Expired - Fee Related CN101515080B (en) | 2008-02-19 | 2008-02-19 | Colored filter and manufacturing method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389533A (en) * | 2013-07-31 | 2013-11-13 | 京东方科技集团股份有限公司 | Method for manufacturing color filter and color filter |
| CN106324933B (en) * | 2016-10-12 | 2019-08-13 | 深圳市华星光电技术有限公司 | Thin-film transistor array base-plate and preparation method thereof and liquid crystal display panel |
| CN106773250A (en) * | 2016-12-29 | 2017-05-31 | 东旭（昆山）显示材料有限公司 | A kind of color membrane substrates and preparation method thereof and display panel and display |
| CN108845447A (en) * | 2018-06-22 | 2018-11-20 | 惠科股份有限公司 | The manufacturing method and lithographic process of colour light filtering structure, colour light filtering structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5907377A (en) * | 1994-09-19 | 1999-05-25 | Canon Kabushiki Kaisha | Production process of color filter for LCD employing black matrix as mask for etching |
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2008
- 2008-02-19 CN CN2008100578482A patent/CN101515080B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5907377A (en) * | 1994-09-19 | 1999-05-25 | Canon Kabushiki Kaisha | Production process of color filter for LCD employing black matrix as mask for etching |
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| CN101515080A (en) | 2009-08-26 |
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Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20141201 Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20141201 |
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Free format text: CORRECT: ADDRESS; FROM: 100176 DAXING, BEIJING TO: 100015 CHAOYANG, BEIJING |
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Effective date of registration: 20141201 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE Technology Group Co., Ltd. Patentee after: Beijing BOE Photoelectricity Science & Technology Co., Ltd. Address before: 100176 Beijing economic and Technological Development Zone, West Central Road, No. 8 Patentee before: Beijing BOE Photoelectricity Science & Technology Co., Ltd. |
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