CN102866531A - Color filter, manufacturing method thereof, liquid crystal display panel and display device - Google Patents
Color filter, manufacturing method thereof, liquid crystal display panel and display device Download PDFInfo
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- CN102866531A CN102866531A CN2012103568949A CN201210356894A CN102866531A CN 102866531 A CN102866531 A CN 102866531A CN 2012103568949 A CN2012103568949 A CN 2012103568949A CN 201210356894 A CN201210356894 A CN 201210356894A CN 102866531 A CN102866531 A CN 102866531A
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Filters (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a color filter, a manufacturing method thereof, materials for manufacturing the color filter, a liquid crystal display panel and a display device, and belongs to the field of liquid crystal display. The manufacturing method includes forming a black matrix on a substrate; coating a pixel resin material on the substrate added with a first solvent capable of being dissolved in the pixel resin material; performing first heat treatment for the substrate coated with the pixel resin material so that the first solvent in the pixel resin material is volatilized to form micropores; and exposing the substrate by a mask plate engraved with a graph after the substrate is subjected to the first heat treatment, and forming a graph of a pixel resin layer after development and second heat treatment. The process of perforating a pixel zone of the color filter can be simplified, so that production cost is lowered.
Description
Technical field
The present invention relates to field of liquid crystal display, material, display panels and the display device of relate in particular to a kind of colored filter and preparation method thereof, making colored filter.
Background technology
For transmitance and the brightness that realizes that colored filter is higher, more employing realizes in the mode of colored filter pixel region perforate in the prior art.In the prior art, the realization of color perforate technology is to adopt portrayal that the mask plate of micropore figure is arranged, and forms micropore by exposure, developing process in pixel resin layer (color resin layer).This kind perforate mode, complex process, and need to make the perforate that specific mask plate is realized pixel region, cost is higher.
Summary of the invention
Technical matters to be solved by this invention provides a kind of colored filter and preparation method thereof, display panels and display device, being reduced at the technique of colored filter pixel region perforate, thereby reduces production costs.
For solving the problems of the technologies described above, it is as follows to the invention provides technical scheme:
A kind of method for making of colored filter comprises:
Form black matrix at substrate;
Apply the pixel resin material at substrate, be added with first solvent that can mix with described pixel resin material in the described pixel resin material;
The substrate that is coated with the pixel resin material is carried out the first thermal treatment, so that the first solvent evaporates in the pixel resin material forms micropore;
Substrate after adopting mask plate that portrayal has a figure to the first thermal treatment exposes, and through develop and the second thermal treatment after, the figure of formation pixel resin layer.
Above-mentioned method for making wherein, also comprises:
Form transparency conducting layer at black matrix and pixel resin layer, and, cylindrical spacer formed at transparency conducting layer; Perhaps,
Form protective clear layer at black matrix and pixel resin layer, form transparency conducting layer at protective clear layer, and, cylindrical spacer formed at transparency conducting layer.
Above-mentioned method for making, wherein: the boiling point of described the first solvent is lower than predetermined threshold.
Above-mentioned method for making, wherein: described predetermined threshold is 70 ℃.
Above-mentioned method for making, wherein: described the first solvent is ethanol, ether, pentane, acetone or chloroform.
Above-mentioned method for making, wherein: the described first heat treated temperature is 90-100 ℃, the time is 3-5 minute.
Above-mentioned method for making, wherein: the described second heat treated temperature is 150-250 ℃, the time is 20-60 minute.
A kind of material of making colored filter is characterized in that comprising colour filter resin and first solvent that can mix with described colour filter resin, and described the first solvent is after heat treatment volatilizable and form micropore in described colour filter resin.A kind of colored filter comprises substrate, is formed on black matrix and pixel resin layer on the described substrate, it is characterized in that, be formed with micropore in the 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 in the pixel resin material, utilizes the volatilization of solvent to form micropore at the pixel resin layer by the solvent that can mix with the pixel resin material in the front baking process.The method only needs can realize in the prolongation front baking time in front baking stage of existing colored filter production technology, has simplified the technique in the pixel region perforate, thereby reduced production cost.
Description of drawings
Fig. 1 is the vertical view of colored filter in the embodiment of the invention;
Fig. 2 is that the A-A ' of colored filter shown in Figure 1 is to sectional view;
Fig. 3 is the colored filter vertical view of finishing black Matrix Pattern in the embodiment of the invention;
Fig. 4 finishes the colored filter sectional view that the pixel resin material applies in the embodiment of the invention;
Fig. 5 is the colored filter sectional view of finishing the pixel resin layer in the embodiment of the invention;
Fig. 6 is the colored filter sectional view of finishing protective clear layer in the embodiment of the invention;
Fig. 7 is the colored filter sectional view of finishing transparency conducting layer in the embodiment of the invention;
Fig. 8 is the method for making process flow diagram of the colored filter of the embodiment of the invention.
Reference numeral:
The 1-substrate; 2-deceives matrix; 3-red pixel resin bed; 4-green pixel resin bed; 5-blue pixel resin bed; The 6-protective clear layer; The 7-transparency conducting layer; The 8-cylindrical spacer; The 9-micropore; The 10-solvent molecule
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the accompanying drawings and the specific embodiments.
The embodiment of the invention provides a kind of method for making of colored filter, in the pixel resin material, utilizes the volatilization of solvent to form micropore at the pixel resin layer by the solvent that can mix with the pixel resin material in the front baking process.The method only needs can realize in the prolongation front baking time in front baking stage of existing colored filter production technology, has simplified the technique in the pixel region perforate, thereby reduced production cost.
The structure of the formed colored filter of the embodiment of the invention comprises as depicted in figs. 1 and 2: substrate 1, be formed on black matrix 2 on the substrate, be formed on pixel resin layer (comprising red pixel resin bed 3, green pixel resin bed 4 and blue pixel resin bed 5) in the pixel region that black matrix 2 surrounds, be formed on protective clear layer 6 on black matrix 2 and the pixel resin layer, be formed on the transparency conducting layer 7 on the protective clear layer 6 and be formed on cylindrical spacer 8 on the transparency conducting layer 7.Wherein, offer micropore 9 in the described pixel resin layer.
With reference to Fig. 8, the method for making of the colored filter of the embodiment of the invention can comprise the steps
Step 101: form black matrix at substrate, described black matrix surrounds pixel region;
Substrate can adopt glass substrate or other transparent material substrates.As shown in Figure 3, can be on glass substrate spin coating or the black matrix of blade coating one deck with photoresist, adopt portrayal to have the mask plate of figure that substrate is exposed, then, the substrate after the exposure is developed, obtain black graph of matrix shape.Wherein, the thickness of described black Matrix Pattern can be 1-5 μ m.
Step 102: can disperse with the solvent that the pixel resin material mixes to add in the pixel resin material;
Preferably, described solvent is low boiling point solvent, and its boiling point is lower than 70 ℃, for example, can adopt ethanol, ether, pentane, acetone or chloroform.
Step 103: apply the pixel resin material that is added with solvent at the substrate that is formed with black matrix;
Finish the structure of the colored filter that the pixel resin material applies as shown in Figure 4, can find out that equally distributed solvent is arranged in the pixel resin material.
Step 104: the substrate that is coated with the pixel resin material is heat-treated, so that the solvent evaporates in the pixel resin material forms micropore;
This thermal treatment is the front baking process in the photoetching process, has been proper extension the front baking time, and solvent can fully be volatilized.As shown in Figure 5, equally distributed solvent is volatilized through thermal treatment in the pixel resin material, thereby has formed micropore.
Because solvent can evenly mix in the pixel resin material, so can form uniform micropore.In addition, can also control according to required brightness the addition of solvent, namely its concentration is controlled the quantity of micropore, and then realizes the control of brightness.
Wherein, described heat treatment temperature can be 90-100 ℃, and the time can be 3-5min.
Step 105: the substrate after adopting mask plate that portrayal has a figure to thermal treatment exposes, and through develop and thermal treatment after, the figure of formation pixel resin layer;
At first, adopt portrayal to have the mask plate of figure that substrate is exposed, then, to the substrate after the exposure develop and thermal treatment (namely afterwards baking process) after, just formed the figure (as shown in Figure 5) of the pixel resin layer that contains micropore.
Wherein, described heat treated temperature can be 150-250 ℃, and the time can be 20-60min.
In addition, above-mentioned steps 103～105 can be carried out repeatedly, and step 103～105 of every execution just form a kind of pixel resin layer of color.For example: first coated red pixel resin layer on substrate forms the figure of red pixel resin bed according to the method described above; Then, apply the green pixel resin bed at substrate, form according to the method described above the figure of green pixel resin bed; At last, apply the blue pixel resin bed at substrate, form according to the method described above the figure of blue pixel resin bed.
Step 106: the substrate at completing steps 105 forms protective clear layer;
Can adopt the techniques such as coating, baking to form described protective clear layer (as shown in Figure 6).
Step 107: the substrate at completing steps 106 forms transparency conducting layer;
The mode that can adopt deposition or electroplate forms described transparency conducting layer (as shown in Figure 7), the thickness of described transparency conducting layer can for
Step 108: the substrate at completing steps 107 forms cylindrical spacer.
Can adopt photoetching process to form described cylindrical spacer.Particularly, apply cylindrical spacer with photoresist at the substrate of completing steps 107, by exposure, developing process, finally form cylindrical spacer.The cross-sectional diameter that described cylindrical spacer links to each other with colored filter can be 15-20 μ m, and the cross-sectional diameter of the unsettled end of described cylindrical spacer can be 5-10 μ m; The height of described cylindrical spacer can for 5-10 μ m(as shown in Figure 2).
In addition, above-mentioned step 106 and 107 can be accepted or rejected as the case may be.For example, when not comprising protective clear layer in the colored filter, then step 106 can be omitted; When not comprising transparency conducting layer in the colored filter, then step 107 can be omitted.
The embodiment of the invention also provides a kind of material of making colored filter, the material of described making colored filter comprises colour filter resin and first solvent that can mix with described colour filter resin, and described the first solvent is after heat treatment volatilizable and form micropore in described colour filter resin.The embodiment of the invention also provides a kind of colored filter, described colored filter comprises substrate, be formed on black matrix and pixel resin layer on the described substrate, be formed with micropore in the described pixel resin layer, described micropore is after heat treatment obtained by the material of above-mentioned making colored filter.
The embodiment of the invention also provides a kind of display panels, and described display panels comprises the colored filter that array base palte, above-described embodiment provide, and, be filled in the liquid crystal layer between described array base palte and the described colored filter.
The embodiment of the invention also provides a kind of display device, and described display device comprises above-mentioned display panels.
In sum, the embodiment of the invention in the pixel resin material, utilizes the volatilization of solvent to form micropore at the pixel resin layer by the solvent that can mix with the pixel resin material in the front baking process.The method only needs can realize in the prolongation front baking time in front baking stage of existing colored filter production technology, has simplified the technique in the pixel region perforate, thereby reduced production cost.
Should be noted that at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spiritual scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (11)
1. the method for making of a chromatic filter layer is characterized in that, comprising:
Form black matrix at substrate;
Apply the pixel resin material at substrate, be added with first solvent that can mix with described pixel resin material in the described pixel resin material;
The substrate that is coated with the pixel resin material is carried out the first thermal treatment, so that the first solvent evaporates in the pixel resin material forms micropore;
Substrate after adopting mask plate that portrayal has a figure to the first thermal treatment exposes, and through develop and the second thermal treatment after, the figure of formation pixel resin layer.
2. method for making as claimed in claim 1 is characterized in that, also comprises:
Form transparency conducting layer at black matrix and pixel resin layer, and, cylindrical spacer formed at transparency conducting layer; Perhaps,
Form protective clear layer at black matrix and pixel resin layer, form transparency conducting layer at protective clear layer, and, cylindrical spacer formed at transparency conducting layer.
3. method for making as claimed in claim 1 is characterized in that:
The boiling point of described the 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 ℃.
5. method for making as claimed in claim 1 is characterized in that:
Described the first solvent is ethanol, ether, pentane, acetone or chloroform.
6. method for making as claimed in claim 1 is characterized in that:
The described first heat treated temperature is 90-100 ℃, and the time is 3-5 minute.
7. method for making as claimed in claim 1 is characterized in that:
The described second heat treated temperature is 150-250 ℃, and the time is 20-60 minute.
8. material of making colored filter is characterized in that comprising colour filter resin and first solvent that can mix with described colour filter resin, and described the first solvent is after heat treatment volatilizable and form micropore in described colour filter resin.
9. colored filter, comprise substrate, be formed on black matrix and pixel resin layer on the described substrate, it is characterized in that, be formed with micropore in the described pixel resin layer, described micropore is after heat treatment obtained by the material of making colored filter claimed in claim 8.
10. a display panels is characterized in that, comprises colored filter claimed in claim 9.
11. a display device is characterized in that, comprises display panels claimed in claim 10.
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 | 2012-04-01 | ||
| CN201210096593.7 | 2012-04-01 | ||
| CN2012100965937 | 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 |
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| Publication Number | Publication Date |
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| CN102866531A true CN102866531A (en) | 2013-01-09 |
| CN102866531B CN102866531B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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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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| Country | Link |
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| CN (1) | CN102866531B (en) |
| WO (1) | WO2013149468A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013149468A1 (en) * | 2012-04-01 | 2013-10-10 | 京东方科技集团股份有限公司 | Method for manufacturing color filter, color filter, and display device |
| CN109219771A (en) * | 2017-03-17 | 2019-01-15 | 京东方科技集团股份有限公司 | The method of color membrane substrates and manufacture color membrane substrates |
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| 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 |
-
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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013149468A1 (en) * | 2012-04-01 | 2013-10-10 | 京东方科技集团股份有限公司 | Method for manufacturing color filter, color filter, and display device |
| CN109219771A (en) * | 2017-03-17 | 2019-01-15 | 京东方科技集团股份有限公司 | The method of color membrane substrates and manufacture color membrane substrates |
| CN109219771B (en) * | 2017-03-17 | 2021-08-06 | 京东方科技集团股份有限公司 | Color film substrate and method for manufacturing color film substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102866531B (en) | 2015-09-02 |
| WO2013149468A1 (en) | 2013-10-10 |
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