CN102866531B - A kind of colored filter and preparation method thereof, display panels and display device - Google Patents
A kind of colored filter and preparation method thereof, display panels and display device Download PDFInfo
- Publication number
- CN102866531B CN102866531B CN201210356894.9A CN201210356894A CN102866531B CN 102866531 B CN102866531 B CN 102866531B CN 201210356894 A CN201210356894 A CN 201210356894A CN 102866531 B CN102866531 B CN 102866531B
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- pixel resin
- colored filter
- making
- solvent
- substrate
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/201—Filters in the form of arrays
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
- G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
- G03F7/0007—Filters, e.g. additive colour filters; Components for display devices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
- G02F1/133519—Overcoatings
Abstract
The invention provides a kind of colored filter and preparation method thereof, the material making colored filter, display panels and display device, belong to field of liquid crystal display.Described method for making comprises: on substrate, form black matrix; Substrate applies pixel resin material, in described pixel resin material, is added with first solvent that can mix with described pixel resin material; First thermal treatment is carried out to the substrate being coated with pixel resin material, makes the first solvent volatilization in pixel resin material form micropore; Adopt the mask plate portraying figure to the base board to explosure after the first thermal treatment, and after development and the second thermal treatment, form the figure of pixel resin layer.The present invention can be reduced at the technique of colored filter pixel region perforate, thus reduces production cost.
Description
Technical field
The present invention relates to field of liquid crystal display, particularly relate to a kind of colored filter and preparation method thereof, the material making colored filter, display panels and display device.
Background technology
In order to realize the higher transmitance of colored filter and brightness, in prior art, more employing realizes in the mode of colored filter pixel region perforate.In prior art, the realization of color venting techniques adopts the mask plate portraying micropore figure, forms micropore by exposure, developing process in pixel resin layer (color resin layer).This kind of perforate mode, complex process, and need to make specific mask plate to realize the perforate of pixel region, cost is higher.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of colored filter and preparation method thereof, display panels and display device, to be reduced at the technique of colored filter pixel region perforate, thus reduces production cost.
For solving the problems of the technologies described above, the invention provides technical scheme as follows:
A method for making for colored filter, comprising:
Substrate is formed black matrix;
Substrate applies pixel resin material, in described pixel resin material, is added with first solvent that can mix with described pixel resin material;
First thermal treatment is carried out to the substrate being coated with pixel resin material, makes the first solvent volatilization in pixel resin material form micropore;
Adopt the mask plate portraying figure to the base board to explosure after the first thermal treatment, and after development and the second thermal treatment, form the figure of pixel resin layer.
Above-mentioned method for making, wherein, also comprises:
Black matrix and pixel resin layer form transparency conducting layer, and, form cylindrical spacer over transparent conductive layer; Or,
Black matrix and pixel resin layer form protective clear layer, protective clear layer forms transparency conducting layer, and, form cylindrical spacer over transparent conductive layer.
Above-mentioned method for making, wherein: the boiling point of described first solvent is lower than predetermined threshold.
Above-mentioned method for making, wherein: described predetermined threshold is 70 DEG C.
Above-mentioned method for making, wherein: described first solvent is ethanol, ether, pentane, acetone or chloroform.
Above-mentioned method for making, wherein: described first heat treated temperature is 90-100 DEG C, and the time is 3-5 minute.
Above-mentioned method for making, wherein: described second heat treated temperature is 150-250 DEG C, and the time is 20-60 minute.
Make a material for colored filter, it is characterized in that the first solvent comprising colour filter resin He can mix with described colour filter resin, described first solvent is after heat treatment volatilizable and form micropore in described colour filter resin.A kind of colored filter, comprises substrate, and form black matrix on the substrate and pixel resin layer, it is characterized in that, be formed with micropore in described pixel resin layer, described micropore is after heat treatment obtained by the material of above-mentioned making colored filter.
A kind of display panels, comprises above-mentioned colored filter.
A kind of display device, comprises above-mentioned display panels.
Compared with prior art, the present invention is blended in pixel resin material by the solvent that can mix with pixel resin material, utilizes the volatilization of solvent to form micropore in front baking process on pixel resin layer.The method only can need realize in the prolongation front baking time in front baking stage of existing colored filter production technology, simplifies the technique in pixel region perforate, thus reduces production cost.
Accompanying drawing explanation
Fig. 1 is the vertical view of colored filter in the embodiment of the present invention;
Fig. 2 is for the A-A ' of colored filter shown in Fig. 1 is to sectional view;
Fig. 3 is the colored filter vertical view completing black Matrix Pattern in the embodiment of the present invention;
Fig. 4 is the colored filter sectional view completing pixel resin material coating in the embodiment of the present invention;
Fig. 5 is the colored filter sectional view completing pixel resin layer in the embodiment of the present invention;
Fig. 6 is the colored filter sectional view completing protective clear layer in the embodiment of the present invention;
Fig. 7 is the colored filter sectional view completing transparency conducting layer in the embodiment of the present invention;
Fig. 8 is the method for making process flow diagram of the colored filter of the embodiment of the present invention.
Reference numeral:
1-substrate; The black matrix of 2-; 3-red pixel resin bed; 4-green pixel resin bed; 5-blue pixel resin bed; 6-protective clear layer; 7-transparency conducting layer; 8-cylindrical spacer; 9-micropore; 10-solvent molecule
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, describe the present invention below in conjunction with the accompanying drawings and the specific embodiments.
The embodiment of the present invention provides a kind of method for making of colored filter, is blended in pixel resin material by the solvent that can mix with pixel resin material, utilizes the volatilization of solvent to form micropore in front baking process on pixel resin layer.The method only can need realize in the prolongation front baking time in front baking stage of existing colored filter production technology, simplifies the technique in pixel region perforate, thus reduces production cost.
The structure of the colored filter that the embodiment of the present invention is formed as depicted in figs. 1 and 2, comprising: substrate 1, the black matrix 2 be formed on substrate, be formed in the pixel resin layer (comprising red pixel resin bed 3, green pixel resin bed 4 and blue pixel resin bed 5) in pixel region that black matrix 2 surrounds, the protective clear layer 6 be formed on black matrix 2 and pixel resin layer, the cylindrical spacer 8 that is formed in the transparency conducting layer 7 on protective clear layer 6 and is formed on transparency conducting layer 7.Wherein, micropore 9 is offered in described pixel resin layer.
With reference to Fig. 8, the method for making of the colored filter of the embodiment of the present invention, can comprise the steps
Step 101: form black matrix on substrate, described black matrix surrounds pixel region;
Substrate can adopt glass substrate or other transparent material substrates.As shown in Figure 3, can spin coating or the black matrix of blade coating one deck with photoresist, adopt the mask plate portraying figure to base board to explosure on the glass substrate, then, the substrate after exposure be developed, obtains the figure of black matrix.Wherein, the thickness of described black Matrix Pattern can be 1-5 μm.
Step 102: the solvent that can mix with pixel resin material disperses to add in pixel resin material;
Preferably, described solvent is low boiling point solvent, and its boiling point, lower than 70 DEG C, such as, can adopt ethanol, ether, pentane, acetone or chloroform.
Step 103: coating is added with the pixel resin material of solvent on the substrate being formed with black matrix;
The structure completing the colored filter of pixel resin material coating as shown in Figure 4, can find out there is equally distributed solvent in pixel resin material.
Step 104: heat-treat the substrate being coated with pixel resin material, makes the solvent volatilization in pixel resin material form micropore;
This thermal treatment is the front baking process in photoetching process, has been proper extension the front baking time, solvent is fully volatilized.As shown in Figure 5, in pixel resin material, equally distributed solvent is volatilized through thermal treatment, thus defines micropore.
Due to solvent can in pixel resin material Homogeneous phase mixing, so can uniform micropore be formed.In addition, can also control the addition of solvent according to required brightness, i.e. its concentration, controls the quantity of micropore, and then realizes the control of brightness.
Wherein, described heat treatment temperature can be 90-100 DEG C, and the time can be 3-5min.
Step 105: adopt the mask plate portraying figure to the base board to explosure after thermal treatment, and after development and thermal treatment, form the figure of pixel resin layer;
First, adopt the mask plate portraying figure to base board to explosure, then, the substrate after exposure is developed and after thermal treatment (drying process namely), just defines the figure (as shown in Figure 5) of the pixel resin layer containing micropore.
Wherein, described heat treated temperature can be 150-250 DEG C, and the time can be 20-60min.
In addition, above-mentioned steps 103 ~ 105 can be carried out repeatedly, often performs step 103 ~ 105, just forms a kind of pixel resin layer of color.Such as: can first coated red pixel resin layer on substrate, the figure of red pixel resin bed be formed according to the method described above; Then, substrate applies green pixel resin bed, form the figure of green pixel resin bed according to the method described above; Finally, substrate applies blue pixel resin bed, form the figure of blue pixel resin bed according to the method described above.
Step 106: form protective clear layer on the substrate of completing steps 105;
The techniques such as coating, baking can be adopted to form described protective clear layer (as shown in Figure 6).
Step 107: form transparency conducting layer on the substrate of completing steps 106;
The mode of deposition or plating can be adopted to form described transparency conducting layer (as shown in Figure 7), and the thickness of described transparency conducting layer can be
Step 108: form cylindrical spacer on the substrate of completing steps 107.
Photoetching process can be adopted to form described cylindrical spacer.Particularly, the substrate of completing steps 107 applies cylindrical spacer with photoresist, by exposure, developing process, finally form cylindrical spacer.The cross-sectional diameter that described cylindrical spacer is connected with colored filter can be 15-20 μm, and the cross-sectional diameter of the unsettled one end of described cylindrical spacer can be 5-10 μm; The height of described cylindrical spacer can be 5-10 μm (as shown in Figure 2).
In addition, above-mentioned step 106 and 107 can be accepted or rejected as the case may be.Such as, when not comprising protective clear layer in colored filter, then step 106 can be omitted; When not comprising transparency conducting layer in colored filter, then step 107 can be omitted.
The embodiment of the present invention also provides a kind of material making colored filter, the first solvent that the material of described making colored filter comprises colour filter resin and can mix with described colour filter resin, described first solvent is after heat treatment volatilizable and form micropore in described colour filter resin.The embodiment of the present invention also provides a kind of colored filter, described colored filter comprises substrate, form black matrix on the substrate and pixel resin layer, be formed with micropore in described pixel resin layer, described micropore is after heat treatment obtained by the material of above-mentioned making colored filter.
The embodiment of the present invention also provides a kind of display panels, the colored filter that described display panels comprises array base palte, above-described embodiment provides, and, be filled in the liquid crystal layer between described array base palte and described colored filter.
The embodiment of the present invention also provides a kind of display device, and described display device comprises above-mentioned display panels.
In sum, the embodiment of the present invention is blended in pixel resin material by the solvent that can mix with pixel resin material, utilizes the volatilization of solvent to form micropore in front baking process on pixel resin layer.The method only can need realize in the prolongation front baking time in front baking stage of existing colored filter production technology, simplifies the technique in pixel region perforate, thus reduces production cost.
Finally should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a method for making for colored filter, is characterized in that, comprising:
Substrate is formed black matrix;
Substrate applies pixel resin material, in described pixel resin material, is added with first solvent that can mix with described pixel resin material;
First thermal treatment is carried out to the substrate being coated with pixel resin material, makes the first solvent volatilization in pixel resin material form micropore;
Adopt the mask plate portraying figure to the base board to explosure after the first thermal treatment, and after development and the second thermal treatment, form the figure of pixel resin layer.
2. method for making as claimed in claim 1, is characterized in that, also comprise:
Black matrix and pixel resin layer form transparency conducting layer, and, form cylindrical spacer over transparent conductive layer; Or,
Black matrix and pixel resin layer form protective clear layer, protective clear layer forms transparency conducting layer, and, form cylindrical spacer over transparent conductive layer.
3. method for making as claimed in claim 1, is characterized in that:
The boiling point of described first solvent is lower than predetermined threshold.
4. method for making as claimed in claim 3, is characterized in that:
Described predetermined threshold is 70 DEG C.
5. method for making as claimed in claim 1, is characterized in that:
Described first solvent is ethanol, ether, pentane, acetone or chloroform.
6. method for making as claimed in claim 1, is characterized in that:
Described first heat treated temperature is 90-100 DEG C, and the time is 3-5 minute.
7. method for making as claimed in claim 1, is characterized in that:
Described second heat treated temperature is 150-250 DEG C, and the time is 20-60 minute.
8. a colored filter, comprise substrate, form black matrix on the substrate and pixel resin layer, it is characterized in that, micropore is formed in described pixel resin layer, described micropore is after heat treatment obtained by the material making colored filter, the first solvent that the material of described making colored filter comprises colour filter resin and can mix with described colour filter resin, and described first solvent is after heat treatment volatilizable and form micropore in described colour filter resin.
9. a display panels, is characterized in that, comprises colored filter according to claim 8.
10. a display device, is characterized in that, comprises display panels according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210356894.9A CN102866531B (en) | 2012-04-01 | 2012-09-21 | A kind of colored filter and preparation method thereof, display panels and display device |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210096593.7 | 2012-04-01 | ||
| CN2012100965937 | 2012-04-01 | ||
| CN201210096593 | 2012-04-01 | ||
| CN201210356894.9A CN102866531B (en) | 2012-04-01 | 2012-09-21 | A kind of colored filter and preparation method thereof, display panels and display device |
Publications (2)
| Publication Number | Publication Date |
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| CN102866531A CN102866531A (en) | 2013-01-09 |
| CN102866531B true CN102866531B (en) | 2015-09-02 |
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| CN201210356894.9A Active CN102866531B (en) | 2012-04-01 | 2012-09-21 | A kind of colored filter and preparation method thereof, display panels and display device |
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| CN (1) | CN102866531B (en) |
| WO (1) | WO2013149468A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102866531B (en) * | 2012-04-01 | 2015-09-02 | 京东方科技集团股份有限公司 | A kind of colored filter and preparation method thereof, display panels and display device |
| US10527881B2 (en) * | 2017-03-17 | 2020-01-07 | Boe Technology Group Co., Ltd. | Color filter substrate and method of fabricating a color filter substrate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008242203A (en) * | 2007-03-28 | 2008-10-09 | Toppan Printing Co Ltd | Method for manufacturing color filter and the same |
| CN101851852A (en) * | 2010-06-22 | 2010-10-06 | 南通通远鑫纺织品有限公司 | Technique for dyeing and finishing breathable, moisture-permeable, waterproof and antistatic light-weight fabric |
| CN102135634A (en) * | 2010-01-22 | 2011-07-27 | 京东方科技集团股份有限公司 | Color filter and manufacturing method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4627617B2 (en) * | 2003-05-23 | 2011-02-09 | 東洋インキ製造株式会社 | Coloring composition, method for producing color filter, and method for producing black matrix substrate |
| CN1884402B (en) * | 2005-06-24 | 2010-04-14 | 虹创科技股份有限公司 | Color filter ink and color filter preparation method |
| TW200907424A (en) * | 2007-08-10 | 2009-02-16 | Au Optronics Corp | Manufacturing method of filter and color filter |
| CN102866531B (en) * | 2012-04-01 | 2015-09-02 | 京东方科技集团股份有限公司 | A kind of colored filter and preparation method thereof, display panels and display device |
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2012
- 2012-09-21 CN CN201210356894.9A patent/CN102866531B/en active Active
- 2012-11-12 WO PCT/CN2012/084475 patent/WO2013149468A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008242203A (en) * | 2007-03-28 | 2008-10-09 | Toppan Printing Co Ltd | Method for manufacturing color filter and the same |
| CN102135634A (en) * | 2010-01-22 | 2011-07-27 | 京东方科技集团股份有限公司 | Color filter and manufacturing method thereof |
| CN101851852A (en) * | 2010-06-22 | 2010-10-06 | 南通通远鑫纺织品有限公司 | Technique for dyeing and finishing breathable, moisture-permeable, waterproof and antistatic light-weight fabric |
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| Publication number | Publication date |
|---|---|
| CN102866531A (en) | 2013-01-09 |
| WO2013149468A1 (en) | 2013-10-10 |
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